Common Weakness Enumeration
CWE-787
Allowed-with-ReviewOut-of-bounds Write
Abstraction: Base · Status: Draft
The product writes data past the end, or before the beginning, of the intended buffer.
16203 vulnerabilities reference this CWE, most recent first.
CVE-2026-18846 (GCVE-0-2026-18846)
Vulnerability from cvelistv5 – Published: 2026-08-13 18:58 – Updated: 2026-08-13 19:32
VLAI
EPSS
VEX
Title
IBM i is Affected By Multiple Vulnerabilities in Host Servers
Summary
IBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a buffer overflow from improperly validating client data. By sending malformed requests to one of the host servers, a remote attacker could leverage this vulnerability to cause a denial-of-server (DoS) for that server.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 19:32 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283578 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | i |
Affected:
7.6
Affected: 7.5 Affected: 7.4 Affected: 7.3 cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18846",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-13T19:32:41.002862Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T19:32:50.526Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*"
],
"product": "i",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "7.6"
},
{
"status": "affected",
"version": "7.5"
},
{
"status": "affected",
"version": "7.4"
},
{
"status": "affected",
"version": "7.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a buffer overflow from improperly validating client data. By sending malformed requests to one of the host servers, a remote attacker could leverage this vulnerability to cause a denial-of-server (DoS) for that server.\u003c/p\u003e"
}
],
"value": "IBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a buffer overflow from improperly validating client data. By sending malformed requests to one of the host servers, a remote attacker could leverage this vulnerability to cause a denial-of-server (DoS) for that server."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T18:58:23.163Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7283578"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003e\u003cstrong\u003eIBM strongly recommends addressing the vulnerability now.\u003c/strong\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eHost Servers\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-SS1\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ11101\u003cbr/\u003eSJ11097\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11101\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11101\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11097\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11097\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.5\u003c/td\u003e\u003ctd\u003eSJ11102\u003cbr/\u003eSJ11098\u003cbr/\u003e\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11102\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11102\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11098\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11098\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.4\u003c/td\u003e\u003ctd\u003eSJ11103\u003cbr/\u003eSJ11099\u003cbr/\u003e\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11103\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11103\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11099\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11099\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3\u003c/td\u003e\u003ctd\u003eSJ11104\u003cbr/\u003eSJ11100\u003cbr/\u003e\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11104\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11104\u00a0\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11100\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11100\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eDebug Server\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e\u003cstrong\u003e5770-SS1\u003c/strong\u003e\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ10899\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10899\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ10899\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eTelnet\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-SS1\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ11022\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11022\" rel=\"noopener noreferrer nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11022\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eDRDA/DDM\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-SS1\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ10848\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10848\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ10848\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.\u003c/p\u003e"
}
],
"value": "IBM strongly recommends addressing the vulnerability now.\n\n\n\nHost Servers\n\nIBM i Release5770-SS1\nPTF Number(s)PTF Download Link(s)7.6SJ11101\nSJ11097 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11101 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11097 7.5SJ11102\nSJ11098\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11102 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11098 7.4SJ11103\nSJ11099\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11103 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11099 7.3SJ11104\nSJ11100\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11100 \n\n\n\n\n\n\n\nDebug Server\n\nIBM i Release5770-SS1\nPTF Number(s)PTF Download Link(s)7.6SJ10899 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10899 \n\n\n\n\n\n\n\nTelnet\n\nIBM i Release5770-SS1\nPTF Number(s)PTF Download Link(s)7.6SJ11022 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11022 \n\n\n\n\n\n\n\nDRDA/DDM\n\nIBM i Release5770-SS1\nPTF Number(s)PTF Download Link(s)7.6SJ10848 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ10848 \n\n\n\n\n\n\n\nIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products."
}
],
"title": "IBM i is Affected By Multiple Vulnerabilities in Host Servers"
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-18846",
"datePublished": "2026-08-13T18:58:23.163Z",
"dateReserved": "2026-08-04T15:07:01.355Z",
"dateUpdated": "2026-08-13T19:32:50.526Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18842 (GCVE-0-2026-18842)
Vulnerability from cvelistv5 – Published: 2026-08-20 22:02 – Updated: 2026-08-22 03:56
VLAI
EPSS
VEX
Title
Vulnerabilities in IBM AIX and PowerVM VIOS
Summary
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to an out-of-bounds write.
Severity
8.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 00:00 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283858 | vendor-advisorypatch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | AIX |
Affected:
7.2
Affected: 7.3 cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:* cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:* cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:* |
|
| IBM | PowerVM VIOS |
Affected:
4.1
cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18842",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-21T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-22T03:56:05.885Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*"
],
"product": "AIX",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "7.2"
},
{
"status": "affected",
"version": "7.3"
}
]
},
{
"cpes": [
"cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*"
],
"product": "PowerVM VIOS",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "4.1"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "CVE-2026-14970, CVE-2026-15061, CVE-2026-15078, CVE-2026-15065, CVE-2026-15068 were reported to IBM by Oneconsult AG (https://oneconsult.com/)."
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to an out-of-bounds write.\u003c/p\u003e"
}
],
"value": "IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to an out-of-bounds write."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T22:02:23.509Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7283858"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003e\u003cstrong\u003eA.\u00a0 APARS\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eIBM has assigned the following APARs to this problem:\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eAIX Level\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAPAR\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAvailability\u00a0\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eSP\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eKEY\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.2.5\u003c/td\u003e\u003ctd\u003eIJ59566\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP13\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3.2\u003c/td\u003e\u003ctd\u003eIJ59565\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP05\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3.3\u003c/td\u003e\u003ctd\u003eIJ59564\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP03\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3.4\u003c/td\u003e\u003ctd\u003eIJ59563\u00a0\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP02\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eVIOS Level\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAPAR\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAvailability\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eSP\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eKEY\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e4.1.0\u003c/td\u003e\u003ctd\u003eIJ59565\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003e4.1.0.50\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e4.1.1\u003c/td\u003e\u003ctd\u003eIJ59564\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003e4.1.1.30\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e4.1.2\u003c/td\u003e\u003ctd\u003eIJ59563\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003e4.1.2.20\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eB.\u00a0 FIXES\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eIBM strongly recommends addressing the vulnerability now.\u003c/p\u003e\u003cp\u003e\u00a0AIX and VIOS fixes are available and can be downloaded from Fix Central: \u003ca href=\"https://www.ibm.com/support/fixcentral\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/fixcentral\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u00a0An LPAR reboot is required to complete the SP/FP update. On AIX, Live Update can be used to avoid a reboot.\u003c/p\u003e\u003cp\u003e\u00a0IBM has assigned the following AIX Service Packs (SPs) and VIOS Fix Packs (FPs) as the remediation levels for the published vulnerabilities.\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eAIX Level\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eService Pack\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.3 TL04\u003c/td\u003e\u003ctd\u003eSP2\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.3 TL03\u003c/td\u003e\u003ctd\u003eSP3\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.3 TL02\u003c/td\u003e\u003ctd\u003eSP5\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.2 TL05\u00a0\u003c/td\u003e\u003ctd\u003eSP13\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003ePowerVM VIOS Level\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eFix Pack\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eVIOS 4.1.2\u00a0\u003c/td\u003e\u003ctd\u003e4.1.2.20\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eVIOS 4.1.1\u00a0\u003c/td\u003e\u003ctd\u003e4.1.1.30\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eVIOS 4.1.0\u00a0\u00a0\u003c/td\u003e\u003ctd\u003e4.1.0.50\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e These SPs/FPs are cumulative and include fixes for all previously published AIX/VIOS security vulnerabilities. They can be applied on top of any earlier affected level of the TL .\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e To apply these patches using nimsh secure, special steps must be taken as the protocol between master and client is updated to be more secure. Please read this article:\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/support/pages/node/7283157\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7283157\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e For VIOS 4.1.0 and VIOS 4.1.1, additional steps are required to migrate to the latest Postgres15 after applying the 4.1.1.30 or 4.1.0.50 FPs above. Instructions to do that can be found here:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\u003c/p\u003e\u003cp\u003e\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.0.50 post-update instructions: \u003ca href=\"https://www.ibm.com/support/pages/node/7283819\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7283819\u003c/a\u003e\u003cbr/\u003e\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.1.30 post-update instructions: \u003ca href=\"https://www.ibm.com/support/pages/node/7283823\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7283823\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e"
}
],
"value": "A.\u00a0 APARS\n\n\n\nIBM has assigned the following APARs to this problem:\n\nAIX LevelAPARAvailability\u00a0\u00a0SPKEY7.2.5IJ5956608/14/2026SP13key_w_apar7.3.2IJ5956508/14/2026SP05key_w_apar7.3.3IJ5956408/14/2026SP03key_w_apar7.3.4IJ59563\u00a008/14/2026SP02key_w_apar\n\n\n\n\n\nVIOS LevelAPARAvailability\u00a0SPKEY4.1.0IJ5956508/14/20264.1.0.50key_w_apar4.1.1IJ5956408/14/20264.1.1.30key_w_apar4.1.2IJ5956308/14/20264.1.2.20key_w_apar\n\n\n\n\n\n\n\nB.\u00a0 FIXES\n\n\n\nIBM strongly recommends addressing the vulnerability now.\n\n\n\n\u00a0AIX and VIOS fixes are available and can be downloaded from Fix Central: https://www.ibm.com/support/fixcentral \n\n\n\n\u00a0An LPAR reboot is required to complete the SP/FP update. On AIX, Live Update can be used to avoid a reboot.\n\n\n\n\u00a0IBM has assigned the following AIX Service Packs (SPs) and VIOS Fix Packs (FPs) as the remediation levels for the published vulnerabilities.\n\nAIX Level\u00a0Service PackAIX 7.3 TL04SP2AIX 7.3 TL03SP3AIX 7.3 TL02SP5AIX 7.2 TL05\u00a0SP13\n\n\n\n\n\nPowerVM VIOS LevelFix PackVIOS 4.1.2\u00a04.1.2.20VIOS 4.1.1\u00a04.1.1.30VIOS 4.1.0\u00a0\u00a04.1.0.50\n\n\n\n\n\n\n\nNote: These SPs/FPs are cumulative and include fixes for all previously published AIX/VIOS security vulnerabilities. They can be applied on top of any earlier affected level of the TL .\n\n\n\nNote: To apply these patches using nimsh secure, special steps must be taken as the protocol between master and client is updated to be more secure. Please read this article:\n https://www.ibm.com/support/pages/node/7283157 \n\n\n\nNote: For VIOS 4.1.0 and VIOS 4.1.1, additional steps are required to migrate to the latest Postgres15 after applying the 4.1.1.30 or 4.1.0.50 FPs above. Instructions to do that can be found here:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\n\n\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.0.50 post-update instructions: https://www.ibm.com/support/pages/node/7283819 \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.1.30 post-update instructions: https://www.ibm.com/support/pages/node/7283823"
}
],
"title": "Vulnerabilities in IBM AIX and PowerVM VIOS"
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-18842",
"datePublished": "2026-08-20T22:02:23.509Z",
"dateReserved": "2026-08-04T14:46:50.774Z",
"dateUpdated": "2026-08-22T03:56:05.885Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18832 (GCVE-0-2026-18832)
Vulnerability from cvelistv5 – Published: 2026-08-20 22:01 – Updated: 2026-08-22 03:56
VLAI
EPSS
VEX
Title
Vulnerabilities in IBM AIX and PowerVM VIOS
Summary
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a heap-based buffer overflow.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 00:00 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283858 | vendor-advisorypatch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | AIX |
Affected:
7.2
Affected: 7.3 cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:* cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:* cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:* |
|
| IBM | PowerVM VIOS |
Affected:
4.1
cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18832",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-21T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-22T03:56:08.157Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*"
],
"product": "AIX",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "7.2"
},
{
"status": "affected",
"version": "7.3"
}
]
},
{
"cpes": [
"cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*"
],
"product": "PowerVM VIOS",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "4.1"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "CVE-2026-14970, CVE-2026-15061, CVE-2026-15078, CVE-2026-15065, CVE-2026-15068 were reported to IBM by Oneconsult AG (https://oneconsult.com/)."
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a heap-based buffer overflow.\u003c/p\u003e"
}
],
"value": "IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a heap-based buffer overflow."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T22:01:44.450Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7283858"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003e\u003cstrong\u003eA.\u00a0 APARS\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eIBM has assigned the following APARs to this problem:\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eAIX Level\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAPAR\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAvailability\u00a0\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eSP\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eKEY\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.2.5\u003c/td\u003e\u003ctd\u003eIJ59566\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP13\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3.2\u003c/td\u003e\u003ctd\u003eIJ59565\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP05\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3.3\u003c/td\u003e\u003ctd\u003eIJ59564\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP03\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3.4\u003c/td\u003e\u003ctd\u003eIJ59563\u00a0\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP02\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eVIOS Level\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAPAR\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAvailability\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eSP\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eKEY\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e4.1.0\u003c/td\u003e\u003ctd\u003eIJ59565\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003e4.1.0.50\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e4.1.1\u003c/td\u003e\u003ctd\u003eIJ59564\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003e4.1.1.30\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e4.1.2\u003c/td\u003e\u003ctd\u003eIJ59563\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003e4.1.2.20\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eB.\u00a0 FIXES\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eIBM strongly recommends addressing the vulnerability now.\u003c/p\u003e\u003cp\u003e\u00a0AIX and VIOS fixes are available and can be downloaded from Fix Central: \u003ca href=\"https://www.ibm.com/support/fixcentral\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/fixcentral\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u00a0An LPAR reboot is required to complete the SP/FP update. On AIX, Live Update can be used to avoid a reboot.\u003c/p\u003e\u003cp\u003e\u00a0IBM has assigned the following AIX Service Packs (SPs) and VIOS Fix Packs (FPs) as the remediation levels for the published vulnerabilities.\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eAIX Level\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eService Pack\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.3 TL04\u003c/td\u003e\u003ctd\u003eSP2\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.3 TL03\u003c/td\u003e\u003ctd\u003eSP3\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.3 TL02\u003c/td\u003e\u003ctd\u003eSP5\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.2 TL05\u00a0\u003c/td\u003e\u003ctd\u003eSP13\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003ePowerVM VIOS Level\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eFix Pack\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eVIOS 4.1.2\u00a0\u003c/td\u003e\u003ctd\u003e4.1.2.20\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eVIOS 4.1.1\u00a0\u003c/td\u003e\u003ctd\u003e4.1.1.30\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eVIOS 4.1.0\u00a0\u00a0\u003c/td\u003e\u003ctd\u003e4.1.0.50\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e These SPs/FPs are cumulative and include fixes for all previously published AIX/VIOS security vulnerabilities. They can be applied on top of any earlier affected level of the TL .\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e To apply these patches using nimsh secure, special steps must be taken as the protocol between master and client is updated to be more secure. Please read this article:\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/support/pages/node/7283157\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7283157\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e For VIOS 4.1.0 and VIOS 4.1.1, additional steps are required to migrate to the latest Postgres15 after applying the 4.1.1.30 or 4.1.0.50 FPs above. Instructions to do that can be found here:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\u003c/p\u003e\u003cp\u003e\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.0.50 post-update instructions: \u003ca href=\"https://www.ibm.com/support/pages/node/7283819\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7283819\u003c/a\u003e\u003cbr/\u003e\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.1.30 post-update instructions: \u003ca href=\"https://www.ibm.com/support/pages/node/7283823\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7283823\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e"
}
],
"value": "A.\u00a0 APARS\n\n\n\nIBM has assigned the following APARs to this problem:\n\nAIX LevelAPARAvailability\u00a0\u00a0SPKEY7.2.5IJ5956608/14/2026SP13key_w_apar7.3.2IJ5956508/14/2026SP05key_w_apar7.3.3IJ5956408/14/2026SP03key_w_apar7.3.4IJ59563\u00a008/14/2026SP02key_w_apar\n\n\n\n\n\nVIOS LevelAPARAvailability\u00a0SPKEY4.1.0IJ5956508/14/20264.1.0.50key_w_apar4.1.1IJ5956408/14/20264.1.1.30key_w_apar4.1.2IJ5956308/14/20264.1.2.20key_w_apar\n\n\n\n\n\n\n\nB.\u00a0 FIXES\n\n\n\nIBM strongly recommends addressing the vulnerability now.\n\n\n\n\u00a0AIX and VIOS fixes are available and can be downloaded from Fix Central: https://www.ibm.com/support/fixcentral \n\n\n\n\u00a0An LPAR reboot is required to complete the SP/FP update. On AIX, Live Update can be used to avoid a reboot.\n\n\n\n\u00a0IBM has assigned the following AIX Service Packs (SPs) and VIOS Fix Packs (FPs) as the remediation levels for the published vulnerabilities.\n\nAIX Level\u00a0Service PackAIX 7.3 TL04SP2AIX 7.3 TL03SP3AIX 7.3 TL02SP5AIX 7.2 TL05\u00a0SP13\n\n\n\n\n\nPowerVM VIOS LevelFix PackVIOS 4.1.2\u00a04.1.2.20VIOS 4.1.1\u00a04.1.1.30VIOS 4.1.0\u00a0\u00a04.1.0.50\n\n\n\n\n\n\n\nNote: These SPs/FPs are cumulative and include fixes for all previously published AIX/VIOS security vulnerabilities. They can be applied on top of any earlier affected level of the TL .\n\n\n\nNote: To apply these patches using nimsh secure, special steps must be taken as the protocol between master and client is updated to be more secure. Please read this article:\n https://www.ibm.com/support/pages/node/7283157 \n\n\n\nNote: For VIOS 4.1.0 and VIOS 4.1.1, additional steps are required to migrate to the latest Postgres15 after applying the 4.1.1.30 or 4.1.0.50 FPs above. Instructions to do that can be found here:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\n\n\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.0.50 post-update instructions: https://www.ibm.com/support/pages/node/7283819 \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.1.30 post-update instructions: https://www.ibm.com/support/pages/node/7283823"
}
],
"title": "Vulnerabilities in IBM AIX and PowerVM VIOS"
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-18832",
"datePublished": "2026-08-20T22:01:44.450Z",
"dateReserved": "2026-08-04T14:21:39.143Z",
"dateUpdated": "2026-08-22T03:56:08.157Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18828 (GCVE-0-2026-18828)
Vulnerability from cvelistv5 – Published: 2026-08-20 22:01 – Updated: 2026-08-21 15:09
VLAI
EPSS
VEX
Title
Vulnerabilities in IBM AIX and PowerVM VIOS
Summary
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to a stack-based buffer overflow.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 15:09 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283858 | vendor-advisorypatch |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | AIX |
Affected:
7.2
Affected: 7.3 cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:* cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:* cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:* |
|
| IBM | PowerVM VIOS |
Affected:
4.1
cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18828",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-21T15:09:01.089747Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T15:09:09.769Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*"
],
"product": "AIX",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "7.2"
},
{
"status": "affected",
"version": "7.3"
}
]
},
{
"cpes": [
"cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*"
],
"product": "PowerVM VIOS",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "4.1"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "CVE-2026-14970, CVE-2026-15061, CVE-2026-15078, CVE-2026-15065, CVE-2026-15068 were reported to IBM by Oneconsult AG (https://oneconsult.com/)."
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to a stack-based buffer overflow.\u003c/p\u003e"
}
],
"value": "IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to a stack-based buffer overflow."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T22:01:25.133Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7283858"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003e\u003cstrong\u003eA.\u00a0 APARS\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eIBM has assigned the following APARs to this problem:\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eAIX Level\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAPAR\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAvailability\u00a0\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eSP\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eKEY\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.2.5\u003c/td\u003e\u003ctd\u003eIJ59566\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP13\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3.2\u003c/td\u003e\u003ctd\u003eIJ59565\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP05\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3.3\u003c/td\u003e\u003ctd\u003eIJ59564\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP03\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3.4\u003c/td\u003e\u003ctd\u003eIJ59563\u00a0\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003eSP02\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eVIOS Level\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAPAR\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eAvailability\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eSP\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eKEY\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e4.1.0\u003c/td\u003e\u003ctd\u003eIJ59565\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003e4.1.0.50\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e4.1.1\u003c/td\u003e\u003ctd\u003eIJ59564\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003e4.1.1.30\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e4.1.2\u003c/td\u003e\u003ctd\u003eIJ59563\u003c/td\u003e\u003ctd\u003e08/14/2026\u003c/td\u003e\u003ctd\u003e4.1.2.20\u003c/td\u003e\u003ctd\u003ekey_w_apar\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eB.\u00a0 FIXES\u003c/strong\u003e\u003c/p\u003e\u003cp\u003eIBM strongly recommends addressing the vulnerability now.\u003c/p\u003e\u003cp\u003e\u00a0AIX and VIOS fixes are available and can be downloaded from Fix Central: \u003ca href=\"https://www.ibm.com/support/fixcentral\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/fixcentral\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u00a0An LPAR reboot is required to complete the SP/FP update. On AIX, Live Update can be used to avoid a reboot.\u003c/p\u003e\u003cp\u003e\u00a0IBM has assigned the following AIX Service Packs (SPs) and VIOS Fix Packs (FPs) as the remediation levels for the published vulnerabilities.\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eAIX Level\u00a0\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eService Pack\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.3 TL04\u003c/td\u003e\u003ctd\u003eSP2\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.3 TL03\u003c/td\u003e\u003ctd\u003eSP3\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.3 TL02\u003c/td\u003e\u003ctd\u003eSP5\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eAIX 7.2 TL05\u00a0\u003c/td\u003e\u003ctd\u003eSP13\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003ePowerVM VIOS Level\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003eFix Pack\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eVIOS 4.1.2\u00a0\u003c/td\u003e\u003ctd\u003e4.1.2.20\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eVIOS 4.1.1\u00a0\u003c/td\u003e\u003ctd\u003e4.1.1.30\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eVIOS 4.1.0\u00a0\u00a0\u003c/td\u003e\u003ctd\u003e4.1.0.50\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e These SPs/FPs are cumulative and include fixes for all previously published AIX/VIOS security vulnerabilities. They can be applied on top of any earlier affected level of the TL .\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e To apply these patches using nimsh secure, special steps must be taken as the protocol between master and client is updated to be more secure. Please read this article:\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/support/pages/node/7283157\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7283157\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e For VIOS 4.1.0 and VIOS 4.1.1, additional steps are required to migrate to the latest Postgres15 after applying the 4.1.1.30 or 4.1.0.50 FPs above. Instructions to do that can be found here:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\u003c/p\u003e\u003cp\u003e\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.0.50 post-update instructions: \u003ca href=\"https://www.ibm.com/support/pages/node/7283819\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7283819\u003c/a\u003e\u003cbr/\u003e\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.1.30 post-update instructions: \u003ca href=\"https://www.ibm.com/support/pages/node/7283823\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/7283823\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e"
}
],
"value": "A.\u00a0 APARS\n\n\n\nIBM has assigned the following APARs to this problem:\n\nAIX LevelAPARAvailability\u00a0\u00a0SPKEY7.2.5IJ5956608/14/2026SP13key_w_apar7.3.2IJ5956508/14/2026SP05key_w_apar7.3.3IJ5956408/14/2026SP03key_w_apar7.3.4IJ59563\u00a008/14/2026SP02key_w_apar\n\n\n\n\n\nVIOS LevelAPARAvailability\u00a0SPKEY4.1.0IJ5956508/14/20264.1.0.50key_w_apar4.1.1IJ5956408/14/20264.1.1.30key_w_apar4.1.2IJ5956308/14/20264.1.2.20key_w_apar\n\n\n\n\n\n\n\nB.\u00a0 FIXES\n\n\n\nIBM strongly recommends addressing the vulnerability now.\n\n\n\n\u00a0AIX and VIOS fixes are available and can be downloaded from Fix Central: https://www.ibm.com/support/fixcentral \n\n\n\n\u00a0An LPAR reboot is required to complete the SP/FP update. On AIX, Live Update can be used to avoid a reboot.\n\n\n\n\u00a0IBM has assigned the following AIX Service Packs (SPs) and VIOS Fix Packs (FPs) as the remediation levels for the published vulnerabilities.\n\nAIX Level\u00a0Service PackAIX 7.3 TL04SP2AIX 7.3 TL03SP3AIX 7.3 TL02SP5AIX 7.2 TL05\u00a0SP13\n\n\n\n\n\nPowerVM VIOS LevelFix PackVIOS 4.1.2\u00a04.1.2.20VIOS 4.1.1\u00a04.1.1.30VIOS 4.1.0\u00a0\u00a04.1.0.50\n\n\n\n\n\n\n\nNote: These SPs/FPs are cumulative and include fixes for all previously published AIX/VIOS security vulnerabilities. They can be applied on top of any earlier affected level of the TL .\n\n\n\nNote: To apply these patches using nimsh secure, special steps must be taken as the protocol between master and client is updated to be more secure. Please read this article:\n https://www.ibm.com/support/pages/node/7283157 \n\n\n\nNote: For VIOS 4.1.0 and VIOS 4.1.1, additional steps are required to migrate to the latest Postgres15 after applying the 4.1.1.30 or 4.1.0.50 FPs above. Instructions to do that can be found here:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\n\n\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.0.50 post-update instructions: https://www.ibm.com/support/pages/node/7283819 \n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 4.1.1.30 post-update instructions: https://www.ibm.com/support/pages/node/7283823"
}
],
"title": "Vulnerabilities in IBM AIX and PowerVM VIOS"
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-18828",
"datePublished": "2026-08-20T22:01:25.133Z",
"dateReserved": "2026-08-04T13:58:07.119Z",
"dateUpdated": "2026-08-21T15:09:09.769Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18821 (GCVE-0-2026-18821)
Vulnerability from cvelistv5 – Published: 2026-08-19 19:41 – Updated: 2026-08-22 03:55
VLAI
EPSS
VEX
Title
Power System Out-of-bounds Write
Summary
IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 Power Systems Firmware is affected by a vulnerability in partition firmware during network boot. An unauthenticated attacker on the same network as a partition undergoing network boot can send a malformed packet, allowing arbitrary code to be executed in the partition firmware and compromising everything subsequently loaded by that partition. Other partitions and the managed system are not affected. Only partitions actively performing a network boot are affected, resulting in a confidentiality, integrity, and availability impact.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 00:00 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283232 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | PowerVM Hypervisor |
Affected:
FW1120.00
Affected: FW1110.00 , ≤ FW1110.30 (semver) Affected: FW1060.00 , ≤ FW1060.80 (semver) Affected: FW950.00 , ≤ FW950.H2 (semver) cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18821",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-21T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-22T03:55:29.695Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:*",
"cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:*"
],
"product": "PowerVM Hypervisor",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "FW1120.00"
},
{
"lessThanOrEqual": "FW1110.30",
"status": "affected",
"version": "FW1110.00",
"versionType": "semver"
},
{
"lessThanOrEqual": "FW1060.80",
"status": "affected",
"version": "FW1060.00",
"versionType": "semver"
},
{
"lessThanOrEqual": "FW950.H2",
"status": "affected",
"version": "FW950.00",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 Power Systems Firmware is affected by a vulnerability in partition firmware during network boot. An unauthenticated attacker on the same network as a partition undergoing network boot can send a malformed packet, allowing arbitrary code to be executed in the partition firmware and compromising everything subsequently loaded by that partition. Other partitions and the managed system are not affected. Only partitions actively performing a network boot are affected, resulting in a confidentiality, integrity, and availability impact.\u003c/p\u003e"
}
],
"value": "IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 Power Systems Firmware is affected by a vulnerability in partition firmware during network boot. An unauthenticated attacker on the same network as a partition undergoing network boot can send a malformed packet, allowing arbitrary code to be executed in the partition firmware and compromising everything subsequently loaded by that partition. Other partitions and the managed system are not affected. Only partitions actively performing a network boot are affected, resulting in a confidentiality, integrity, and availability impact."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T19:41:43.179Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7283232"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eCustomers with the products below should install FW1110.31(1110_134), FW1120.01(1120_167), or newer to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1180 (9080-HEU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1110.31(1110_155), FW1120.01(1120_190), or newer to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1122 (9824-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1124 (9824-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1122s (9824-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1114 (9824-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1122 (9856-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1124 (9856-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1150 (9043-MRU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1120.01(1120_190), or newer to remediate this vulnerability.\u003c/p\u003e\u003cp\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1112 (9242-21B, 9242-21T)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003cbr/\u003eCustomers with the products below should install FW1060.81(1060_184), or newer to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1080 (9080-HEX)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install\u00a0 FW1060.81(1060_191), or newer to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1022 (9105-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1024 (9105-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1022s (9105-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1014 (9105-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1022 (9786-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1024 (9786-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1050 (9043-MRX)\u003c/li\u003e\u003cli\u003eIBM Power System S1012 (9028-21B)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eCustomers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\u003cbr/\u003ePower 9\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S922 (9009-22G)\u003c/li\u003e\u003cli\u003eIBM Power System H922 (9223-22S)\u003c/li\u003e\u003cli\u003eIBM Power System S914 (9009-41G)\u003c/li\u003e\u003cli\u003eIBM Power System S924 (9009-42G)\u003c/li\u003e\u003cli\u003eIBM Power System H924 (9223-42S)\u003c/li\u003e\u003cli\u003eIBM Power System E950 (9040-MR9)\u003c/li\u003e\u003cli\u003eIBM Power System E980 (9080-M9S)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003cem\u003eThe images mentioned above can be located at IBM Fix Central : \u003c/em\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\"\u003e\u003cem\u003ehttps://www.ibm.com/support/fixcentral/\u003c/em\u003e\u003c/a\u003e\u003c/p\u003e"
}
],
"value": "Customers with the products below should install FW1110.31(1110_134), FW1120.01(1120_167), or newer to remediate this vulnerability.\nPower 11\n\n * IBM Power System E1180 (9080-HEU)\n\n\nCustomers with the products below should install FW1110.31(1110_155), FW1120.01(1120_190), or newer to remediate this vulnerability.\nPower 11\n\n * IBM Power System S1122 (9824-22A)\n * IBM Power System S1124 (9824-42A)\n * IBM Power System S1122s (9824-22B)\n * IBM Power System S1114 (9824-41B)\n * IBM Power System L1122 (9856-22H)\n * IBM Power System L1124 (9856-42H)\n * IBM Power System E1150 (9043-MRU)\n\n\nCustomers with the products below should install FW1120.01(1120_190), or newer to remediate this vulnerability.\n\n\n\nPower 11\n\n * IBM Power System S1112 (9242-21B, 9242-21T)\n\n\n\nCustomers with the products below should install FW1060.81(1060_184), or newer to remediate this vulnerability.\nPower 10\n\n * IBM Power System E1080 (9080-HEX)\n\n\nCustomers with the products below should install\u00a0 FW1060.81(1060_191), or newer to remediate this vulnerability.\nPower 10\n\n * IBM Power System S1022 (9105-22A)\n * IBM Power System S1024 (9105-42A)\n * IBM Power System S1022s (9105-22B)\n * IBM Power System S1014 (9105-41B)\n * IBM Power System L1022 (9786-22H)\n * IBM Power System L1024 (9786-42H)\n * IBM Power System E1050 (9043-MRX)\n * IBM Power System S1012 (9028-21B)\n\n\n\n\n\n\nCustomers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\nPower 9\n\n * IBM Power System S922 (9009-22G)\n * IBM Power System H922 (9223-22S)\n * IBM Power System S914 (9009-41G)\n * IBM Power System S924 (9009-42G)\n * IBM Power System H924 (9223-42S)\n * IBM Power System E950 (9040-MR9)\n * IBM Power System E980 (9080-M9S)\n\n\nThe images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/ https://www.ibm.com/support/fixcentral/"
}
],
"title": "Power System Out-of-bounds Write"
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-18821",
"datePublished": "2026-08-19T19:41:43.179Z",
"dateReserved": "2026-08-04T13:21:06.083Z",
"dateUpdated": "2026-08-22T03:55:29.695Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18739 (GCVE-0-2026-18739)
Vulnerability from cvelistv5 – Published: 2026-08-04 05:32 – Updated: 2026-08-31 17:19
VLAI
EPSS
VEX
Title
Popt-devel: popt-static: off-by-one in poptstuffargs
Summary
A flaw was found in popt, a command-line option parsing library. An off-by-one error in the poptStuffArgs function, when repeatedly called by a host application or through deep alias nesting, can lead to corruption of internal program data. This corruption could potentially enable a local attacker to execute arbitrary code if the host application then unsafely processes the altered data.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 00:00 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:56984 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-18739 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2510737 | issue-trackingx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| rpm-software-management | popt |
Affected:
1.1.1 , < *
(semver)
|
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
1.19-11.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-08-03 18:46
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18739",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-04T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T03:56:16.882Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://github.com/rpm-software-management/popt",
"defaultStatus": "unaffected",
"packageName": "popt",
"product": "popt",
"vendor": "rpm-software-management",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "1.1.1",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "popt-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1.19-11.1.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "popt",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "affected",
"packageName": "popt",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "affected",
"packageName": "popt",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "popt",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "popt",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Matanya Moses (Checkpoint) for reporting this issue."
}
],
"datePublic": "2026-08-03T18:46:11.280Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in popt, a command-line option parsing library. An off-by-one error in the poptStuffArgs function, when repeatedly called by a host application or through deep alias nesting, can lead to corruption of internal program data. This corruption could potentially enable a local attacker to execute arbitrary code if the host application then unsafely processes the altered data."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Low"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 2.5,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T17:19:36.862Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:56984",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:56984"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-18739"
},
{
"name": "RHBZ#2510737",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510737"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-03T17:40:02.416Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-03T18:46:11.280Z",
"value": "Made public."
}
],
"title": "Popt-devel: popt-static: off-by-one in poptstuffargs",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-787: Out-of-bounds Write"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-18739",
"datePublished": "2026-08-04T05:32:50.348Z",
"dateReserved": "2026-08-03T20:48:59.224Z",
"dateUpdated": "2026-08-31T17:19:36.862Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18693 (GCVE-0-2026-18693)
Vulnerability from cvelistv5 – Published: 2026-08-11 18:38 – Updated: 2026-08-11 20:25
VLAI
EPSS
VEX
Title
Out-of-Bounds Read/Write in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Memory Disclosure
Summary
An issue in MongoDB Server's handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucket could then result in the server accessing memory outside its intended bounds, potentially causing a server crash (denial of service), exposure of limited memory contents, or memory corruption.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 20:24 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | MongoDB Server |
Affected:
8.3.0 , < 8.3.8
(semver)
Affected: 8.0 , < 8.0.29 (semver) Affected: 7.0 , < 7.0.40 (semver) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18693",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-11T20:24:53.628827Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-11T20:25:02.916Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "MongoDB Server",
"vendor": "MongoDB",
"versions": [
{
"lessThan": "8.3.8",
"status": "affected",
"version": "8.3.0",
"versionType": "semver"
},
{
"lessThan": "8.0.29",
"status": "affected",
"version": "8.0",
"versionType": "semver"
},
{
"lessThan": "7.0.40",
"status": "affected",
"version": "7.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "An issue in MongoDB Server\u0027s handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucket could then result in the server accessing memory outside its intended bounds, potentially causing a server crash (denial of service), exposure of limited memory contents, or memory corruption."
}
],
"value": "An issue in MongoDB Server\u0027s handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucket could then result in the server accessing memory outside its intended bounds, potentially causing a server crash (denial of service), exposure of limited memory contents, or memory corruption."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.2,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"exploitCodeMaturity": "NOT_DEFINED",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"remediationLevel": "NOT_DEFINED",
"reportConfidence": "NOT_DEFINED",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787: Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-11T18:38:31.374Z",
"orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
"shortName": "mongodb"
},
"references": [
{
"url": "https://jira.mongodb.org/browse/SERVER-129994"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "Out-of-Bounds Read/Write in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Memory Disclosure",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
"assignerShortName": "mongodb",
"cveId": "CVE-2026-18693",
"datePublished": "2026-08-11T18:38:31.374Z",
"dateReserved": "2026-08-03T15:53:26.435Z",
"dateUpdated": "2026-08-11T20:25:02.916Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18511 (GCVE-0-2026-18511)
Vulnerability from cvelistv5 – Published: 2026-08-13 20:43 – Updated: 2026-08-14 13:48
VLAI
EPSS
VEX
Title
IBM i is Affected By Multiple Vulnerabilities in Java Secure Sockets Extension
Summary
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to generate a stack-based buffer overflow in the Native IBM i JSSE provider, caused by improper bounds checking during TLS session establishment. A local attacker could overflow a fixed-length buffer and execute arbitrary code on the system or cause the JVM process to crash.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 13:36 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283285 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | i |
Affected:
7.6
Affected: 7.5 Affected: 7.4 Affected: 7.3 cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:* cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18511",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-14T13:36:34.392328Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-14T13:48:42.524Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*"
],
"product": "i",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "7.6"
},
{
"status": "affected",
"version": "7.5"
},
{
"status": "affected",
"version": "7.4"
},
{
"status": "affected",
"version": "7.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to generate a stack-based buffer overflow in the Native IBM i JSSE provider, caused by improper bounds checking during TLS session establishment. A local attacker could overflow a fixed-length buffer and execute arbitrary code on the system or cause the JVM process to crash.\u003c/p\u003e"
}
],
"value": "IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to generate a stack-based buffer overflow in the Native IBM i JSSE provider, caused by improper bounds checking during TLS session establishment. A local attacker could overflow a fixed-length buffer and execute arbitrary code on the system or cause the JVM process to crash."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T20:43:37.477Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7283285"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003e\u003cstrong\u003eIBM strongly recommends addressing the vulnerability now.\u003c/strong\u003e\u003c/p\u003e\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-JV1\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ11036\u003cbr/\u003eSJ11072\u003cbr/\u003eSJ11082\u003cbr/\u003eSJ11088\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11036\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11036\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11072\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11072\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11082\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11082\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11088\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11088\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.5\u003c/td\u003e\u003ctd\u003eSJ11068\u003cbr/\u003eSJ11073\u003cbr/\u003eSJ11070\u003cbr/\u003eSJ11077\u003cbr/\u003eSJ11087\u003cbr/\u003e\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11068\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11068\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11073\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11073\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11070\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11070\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11077\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11077\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11087\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11087\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.4\u003c/td\u003e\u003ctd\u003eSJ11071\u003cbr/\u003eSJ11069\u003cbr/\u003eSJ11076\u003cbr/\u003eSJ11086\u003cbr/\u003e\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11071\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11071\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11069\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11069\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11076\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11076\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11086\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11086\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3\u003c/td\u003e\u003ctd\u003eSJ11067\u003cbr/\u003eSJ11075\u003cbr/\u003eSJ11085\u003cbr/\u003e\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11067\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11067\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11075\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11075\u003c/a\u003e\u003cbr/\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11085\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11085\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003eIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.\u003c/p\u003e"
}
],
"value": "IBM strongly recommends addressing the vulnerability now.\n\nIBM i Release5770-JV1\nPTF Number(s)PTF Download Link(s)7.6SJ11036\nSJ11072\nSJ11082\nSJ11088 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11036 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11072 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11082 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11088 7.5SJ11068\nSJ11073\nSJ11070\nSJ11077\nSJ11087\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11068 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11073 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11070 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11077 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11087 7.4SJ11071\nSJ11069\nSJ11076\nSJ11086\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11071 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11069 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11076 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11086 7.3SJ11067\nSJ11075\nSJ11085\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11067 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11075 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11085 \n\n\n\nIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products."
}
],
"title": "IBM i is Affected By Multiple Vulnerabilities in Java Secure Sockets Extension"
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-18511",
"datePublished": "2026-08-13T20:43:37.477Z",
"dateReserved": "2026-07-31T17:24:47.213Z",
"dateUpdated": "2026-08-14T13:48:42.524Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18460 (GCVE-0-2026-18460)
Vulnerability from cvelistv5 – Published: 2026-09-22 17:50 – Updated: 2026-09-22 18:47
VLAI
EPSS
VEX
Title
Off-by-one Error, Out-of-bounds Write vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.
Summary
Off-by-one Error, Out-of-bounds Write vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 18:47 UTC
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RTI | Connext Professional |
Affected:
7.4.0 , < 7.7.0.1
(custom)
Affected: 7.0.0 , < 7.3.1.6 (custom) cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* |
Date Public
2026-09-15 17:47
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18460",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T18:47:13.220106Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T18:47:21.507Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"modules": [
"Core Libraries"
],
"packageName": "connext_professional",
"packageURL": "pkg:generic/connext_professional",
"product": "Connext Professional",
"vendor": "RTI",
"versions": [
{
"lessThan": "7.7.0.1",
"status": "affected",
"version": "7.4.0",
"versionType": "custom"
},
{
"lessThan": "7.3.1.6",
"status": "affected",
"version": "7.0.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.7.0.1",
"versionStartIncluding": "7.4.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3.1.6",
"versionStartIncluding": "7.0.0",
"vulnerable": true
}
],
"negated": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-09-15T17:47:43.981Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Off-by-one Error, Out-of-bounds Write vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.\u003cp\u003eThis issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6.\u003c/p\u003e"
}
],
"value": "Off-by-one Error, Out-of-bounds Write vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6."
}
],
"impacts": [
{
"capecId": "CAPEC-100",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-100 Overflow Buffers"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-193",
"description": "CWE-193 Off-by-one Error",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T17:50:20.301Z",
"orgId": "3f572a00-62e2-4423-959a-7ea25eff1638",
"shortName": "RTI"
},
"references": [
{
"url": "https://www.rti.com/vulnerabilities/#cve-2026-18460"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Off-by-one Error, Out-of-bounds Write vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.",
"x_generator": {
"engine": "RTI Lubna 1.18.7"
}
}
},
"cveMetadata": {
"assignerOrgId": "3f572a00-62e2-4423-959a-7ea25eff1638",
"assignerShortName": "RTI",
"cveId": "CVE-2026-18460",
"datePublished": "2026-09-22T17:50:20.301Z",
"dateReserved": "2026-07-31T07:30:45.192Z",
"dateUpdated": "2026-09-22T18:47:21.507Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-18415 (GCVE-0-2026-18415)
Vulnerability from cvelistv5 – Published: 2026-09-28 20:00 – Updated: 2026-09-30 15:28
VLAI
EPSS
VEX
Title
Out-of-bounds write in the IEEE 802.15.4 L2 transmit path for oversized non-6LoWPAN frames
Summary
ieee802154_send() in subsys/net/l2/ieee802154/ieee802154.c copies the outgoing packet into a single fixed 125-byte transmit buffer (tx_frame_buf_pool, sized IEEE802154_MTU). In builds with CONFIG_NET_L2_IEEE802154_FRAGMENT enabled (the default whenever CONFIG_NET_6LO is set), the branch taken when 6LoWPAN fragmentation is not required performed an unchecked net_buf_add_mem(frame_buf, pkt_buf->data, pkt_buf->len). The only guard was __ASSERT_NO_MSG() inside net_buf_simple_add(), which is compiled out without CONFIG_ASSERT, so an oversized packet silently overran the frame buffer.
The defect is not reachable from the radio: for NET_AF_INET6 packets ieee802154_6lo_encode_pkt() compares the whole packet length against IEEE802154_MTU and takes the fragmentation path when it does not fit, so every buffer copied on the unfragmented branch is within bounds. It is reachable through NET_AF_PACKET sockets bound to an 802.15.4 interface: for NET_SOCK_RAW the 6LoWPAN block is skipped entirely and for NET_SOCK_DGRAM it returns early on the address-family test, leaving no length validation anywhere on the transmit path (net_context_sendto() and net_if_tx() apply none, and pkt_buffer_length() does not clamp the allocation for this L2).
An application — or, in a CONFIG_USERSPACE build, an unprivileged application thread using the zsock_socket()/zsock_sendto() syscalls — can therefore drive a supervisor-mode out-of-bounds write of chosen bytes past the 125-byte pool buffer. With the default CONFIG_NET_BUF_FIXED_DATA_SIZE of 128 bytes the overrun is bounded to roughly ll_hdr_len + 3 bytes; with CONFIG_NET_BUF_VARIABLE_DATA_SIZE a single storage buffer can be as large as CONFIG_NET_PKT_BUF_TX_DATA_POOL_SIZE, making the overrun far larger. The consequence is corruption of memory adjacent to the pool, with a crash or further compromise of kernel state as the practical impact.
The fix validates ll_hdr_len + net_pkt_get_len(pkt) + authtag_len against IEEE802154_MTU before any copy and adds a tailroom-checking copy_pkt_to_frame() helper that returns -EMSGSIZE instead of overrunning the buffer. The same change also linearizes the whole net_buf chain into one MAC frame, so packet storage boundaries no longer become frame boundaries on the wire.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:18 UTC
CWE
- CWE-787 - bounds
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject | zephyr |
Affected:
3.2.0 , < 4.4.2
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18415",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-30T15:18:58.650860Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T15:28:20.759Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
"defaultStatus": "unaffected",
"packageName": "zephyr",
"product": "zephyr",
"programFiles": [
"subsys/net/l2/ieee802154/ieee802154.c"
],
"programRoutines": [
{
"name": "ieee802154_send"
}
],
"vendor": "zephyrproject",
"versions": [
{
"lessThan": "4.4.2",
"status": "affected",
"version": "3.2.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "ieee802154_send() in subsys/net/l2/ieee802154/ieee802154.c copies the outgoing packet into a single fixed 125-byte transmit buffer (tx_frame_buf_pool, sized IEEE802154_MTU). In builds with CONFIG_NET_L2_IEEE802154_FRAGMENT enabled (the default whenever CONFIG_NET_6LO is set), the branch taken when 6LoWPAN fragmentation is not required performed an unchecked net_buf_add_mem(frame_buf, pkt_buf-\u003edata, pkt_buf-\u003elen). The only guard was __ASSERT_NO_MSG() inside net_buf_simple_add(), which is compiled out without CONFIG_ASSERT, so an oversized packet silently overran the frame buffer.\n\nThe defect is not reachable from the radio: for NET_AF_INET6 packets ieee802154_6lo_encode_pkt() compares the whole packet length against IEEE802154_MTU and takes the fragmentation path when it does not fit, so every buffer copied on the unfragmented branch is within bounds. It is reachable through NET_AF_PACKET sockets bound to an 802.15.4 interface: for NET_SOCK_RAW the 6LoWPAN block is skipped entirely and for NET_SOCK_DGRAM it returns early on the address-family test, leaving no length validation anywhere on the transmit path (net_context_sendto() and net_if_tx() apply none, and pkt_buffer_length() does not clamp the allocation for this L2).\n\nAn application \u2014 or, in a CONFIG_USERSPACE build, an unprivileged application thread using the zsock_socket()/zsock_sendto() syscalls \u2014 can therefore drive a supervisor-mode out-of-bounds write of chosen bytes past the 125-byte pool buffer. With the default CONFIG_NET_BUF_FIXED_DATA_SIZE of 128 bytes the overrun is bounded to roughly ll_hdr_len + 3 bytes; with CONFIG_NET_BUF_VARIABLE_DATA_SIZE a single storage buffer can be as large as CONFIG_NET_PKT_BUF_TX_DATA_POOL_SIZE, making the overrun far larger. The consequence is corruption of memory adjacent to the pool, with a crash or further compromise of kernel state as the practical impact.\n\nThe fix validates ll_hdr_len + net_pkt_get_len(pkt) + authtag_len against IEEE802154_MTU before any copy and adds a tailroom-checking copy_pkt_to_frame() helper that returns -EMSGSIZE instead of overrunning the buffer. The same change also linearizes the whole net_buf chain into one MAC frame, so packet storage boundaries no longer become frame boundaries on the wire."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "bounds",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-28T20:00:01.312Z",
"orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
"shortName": "zephyr"
},
"references": [
{
"name": "Fix commit",
"tags": [
"patch"
],
"url": "https://github.com/zephyrproject-rtos/zephyr/commit/3d4c6177d2dbd77d12d9b14cd75a00cdbd826227"
},
{
"name": "GHSA-j76j-jrjc-xgvp",
"url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-j76j-jrjc-xgvp"
}
],
"title": "Out-of-bounds write in the IEEE 802.15.4 L2 transmit path for oversized non-6LoWPAN frames",
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
"assignerShortName": "zephyr",
"cveId": "CVE-2026-18415",
"datePublished": "2026-09-28T20:00:01.312Z",
"dateReserved": "2026-07-30T17:54:11.604Z",
"dateUpdated": "2026-09-30T15:28:20.759Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation MIT-3
Requirements
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
- Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
Mitigation MIT-4.1
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
Mitigation MIT-10
Operation
Build and Compilation
Strategy: Environment Hardening
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-9
Implementation
- Consider adhering to the following rules when allocating and managing an application's memory:
- Double check that the buffer is as large as specified.
- When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
- Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
- If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
Mitigation MIT-11
Operation
Build and Compilation
Strategy: Environment Hardening
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation MIT-12
Operation
Strategy: Environment Hardening
- Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
- For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
Mitigation MIT-13
Implementation
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
No CAPEC attack patterns related to this CWE.