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890 vulnerabilities by Citrix
CERTFR-2026-AVI-1235
Vulnerability from certfr_avis - Published: 2026-09-28 - Updated: 2026-09-28
De multiples vulnérabilités ont été découvertes dans Citrix NetScaler ADC et Gateway. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et un contournement de la politique de sécurité.
Citrix indique que les vulnérabilités CVE-2026-88771 et CVE-2026-88772 sont activement exploitées.
L'éditeur indique que si les correctifs n'ont pas été installés, tous les équipements sont vulnérables dans leur configuration par défaut.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Citrix | NetScaler ADC | Citrix NetScaler ADC versions 14.1-FIPS antérieures à 14.1-73.37 FIPS | ||
| Citrix | NetScaler ADC | Citrix NetScaler ADC versions 13.1-FIPS antérieures à 13.1-NDcPP 13.1.37.279 | ||
| Citrix | NetScaler Gateway | NetScaler Gateway versions 13.1.x antérieures à 13.1-64.23 | ||
| Citrix | NetScaler Gateway | NetScaler Gateway versions 14.1.x antérieures à 14.1-73.37 | ||
| Citrix | NetScaler ADC | Citrix NetScaler ADC versions 14.1.x antérieures à 14.1-73.37 | ||
| Citrix | NetScaler ADC | Citrix NetScaler ADC versions 13.1.x antérieures à 13.1-64.23 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Citrix NetScaler ADC versions 14.1-FIPS ant\u00e9rieures \u00e0 14.1-73.37 FIPS",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Citrix NetScaler ADC versions 13.1-FIPS ant\u00e9rieures \u00e0 13.1-NDcPP 13.1.37.279",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "NetScaler Gateway versions 13.1.x ant\u00e9rieures \u00e0 13.1-64.23",
"product": {
"name": "NetScaler Gateway",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "NetScaler Gateway versions 14.1.x ant\u00e9rieures \u00e0 14.1-73.37",
"product": {
"name": "NetScaler Gateway",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Citrix NetScaler ADC versions 14.1.x ant\u00e9rieures \u00e0 14.1-73.37",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Citrix NetScaler ADC versions 13.1.x ant\u00e9rieures \u00e0 13.1-64.23",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-88777",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88777"
},
{
"name": "CVE-2026-88776",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88776"
},
{
"name": "CVE-2026-88771",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88771"
},
{
"name": "CVE-2026-88772",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88772"
},
{
"name": "CVE-2026-88775",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88775"
},
{
"name": "CVE-2026-88774",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88774"
},
{
"name": "CVE-2026-88773",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88773"
},
{
"name": "CVE-2026-88778",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88778"
}
],
"initial_release_date": "2026-09-28T00:00:00",
"last_revision_date": "2026-09-28T00:00:00",
"links": [
{
"title": "Billet de blogue Citrix du 27 septembre 2026",
"url": "https://community.citrix.com/techzone-blogs/110_security-updates/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve-2026-88771-through-cve-2026-88778/#Indicators_of_Compromise__cabcb4"
}
],
"reference": "CERTFR-2026-AVI-1235",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-09-28T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Citrix NetScaler ADC et Gateway. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0 distance et un contournement de la politique de s\u00e9curit\u00e9.\n\nCitrix indique que les vuln\u00e9rabilit\u00e9s CVE-2026-88771 et CVE-2026-88772 sont activement exploit\u00e9es.\n\nL\u0027\u00e9diteur indique que si les correctifs n\u0027ont pas \u00e9t\u00e9 install\u00e9s, tous les \u00e9quipements sont vuln\u00e9rables dans leur configuration par d\u00e9faut.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Citrix NetScaler ADC et Gateway",
"vendor_advisories": [
{
"published_at": "2026-09-27",
"title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX697096",
"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096\u0026articleURL=Citrix_NetScaler_ADC_and_Citrix_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_88771_CVE_2026_88772_CVE_2026_88773_CVE_2026_88774_CVE_2026_88775_CVE_2026_88776_CVE_2026_88777_and_CVE_2026_88778"
}
]
}
CERTFR-2026-AVI-1137
Vulnerability from certfr_avis - Published: 2026-09-09 - Updated: 2026-09-09
De multiples vulnérabilités ont été découvertes dans Citrix Workspace app. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Citrix | Workspace app | Workspace app versions antérieures à 2607 LTSR pour Windows | ||
| Citrix | Workspace app | Workspace app versions antérieures à 2603.11 pour Windows | ||
| Citrix | Workspace app | Workspace app versions antérieures à 2507.1 LTSR CU3 pour Windows |
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Workspace app versions ant\u00e9rieures \u00e0 2607 LTSR pour Windows",
"product": {
"name": "Workspace app",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Workspace app versions ant\u00e9rieures \u00e0 2603.11 pour Windows",
"product": {
"name": "Workspace app",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Workspace app versions ant\u00e9rieures \u00e0 2507.1 LTSR CU3 pour Windows",
"product": {
"name": "Workspace app",
"vendor": {
"name": "Citrix",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [],
"initial_release_date": "2026-09-09T00:00:00",
"last_revision_date": "2026-09-09T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1137",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-09-09T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Citrix Workspace app. Elles permettent \u00e0 un attaquant de provoquer un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Citrix Workspace app",
"vendor_advisories": [
{
"published_at": "2026-09-08",
"title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX697034",
"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697034\u0026articleURL=Citrix_Workspace_app_for_Windows_Security_Bulletin_CVE_2026_78546_and_CVE_2026_78547"
}
]
}
CERTFR-2026-AVI-1059
Vulnerability from certfr_avis - Published: 2026-08-20 - Updated: 2026-08-20
De multiples vulnérabilités ont été découvertes dans les produits Citrix. Elles permettent à un attaquant de provoquer un déni de service à distance, un contournement de la politique de sécurité et un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Citrix | NetScaler ADC | NetScaler ADC versions 14.1-FIPS antérieures à 14.1-73.32 FIPS | ||
| Citrix | NetScaler ADC | NetScaler ADC versions 13.1-FIPS antérieures à 13.1-NDcPP 13.1-37.277 | ||
| Citrix | NetScaler ADC | NetScaler ADC versions antérieures à 13.1-63.21 | ||
| Citrix | NetScaler Gateway | NetScaler Gateway versions antérieures à 13.1-63.21 | ||
| Citrix | NetScaler Gateway | NetScaler Gateway versions antérieures à 14.1-73.32 | ||
| Citrix | NetScaler ADC | NetScaler ADC versions antérieures à 14.1-73.32 |
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "NetScaler ADC versions 14.1-FIPS ant\u00e9rieures \u00e0 14.1-73.32 FIPS",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "NetScaler ADC versions 13.1-FIPS ant\u00e9rieures \u00e0 13.1-NDcPP 13.1-37.277",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "NetScaler ADC versions ant\u00e9rieures \u00e0 13.1-63.21",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "NetScaler Gateway versions ant\u00e9rieures \u00e0 13.1-63.21",
"product": {
"name": "NetScaler Gateway",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "NetScaler Gateway versions ant\u00e9rieures \u00e0 14.1-73.32",
"product": {
"name": "NetScaler Gateway",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "NetScaler ADC\u202f versions ant\u00e9rieures \u00e0 14.1-73.32",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-19489",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-19489"
},
{
"name": "CVE-2026-19490",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-19490"
}
],
"initial_release_date": "2026-08-20T00:00:00",
"last_revision_date": "2026-08-20T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1059",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-08-20T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Citrix. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance, un contournement de la politique de s\u00e9curit\u00e9 et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Citrix",
"vendor_advisories": [
{
"published_at": "2026-08-19",
"title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX696939",
"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939\u0026articleURL=NetScaler_ADC_and_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_19489_and_CVE_2026_19490"
}
]
}
CERTFR-2026-AVI-0941
Vulnerability from certfr_avis - Published: 2026-07-29 - Updated: 2026-07-29
De multiples vulnérabilités ont été découvertes dans Citrix XenServer. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "XenServer versions 8.4 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "XenServer",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "XenServer versions 9 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "XenServer",
"vendor": {
"name": "Citrix",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-42492",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42492"
},
{
"name": "CVE-2026-62428",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-62428"
},
{
"name": "CVE-2026-62436",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-62436"
},
{
"name": "CVE-2026-62434",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-62434"
},
{
"name": "CVE-2026-62432",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-62432"
},
{
"name": "CVE-2026-62435",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-62435"
},
{
"name": "CVE-2026-62431",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-62431"
}
],
"initial_release_date": "2026-07-29T00:00:00",
"last_revision_date": "2026-07-29T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0941",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-07-29T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Citrix XenServer. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0 distance et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Citrix XenServer",
"vendor_advisories": [
{
"published_at": "2026-07-28",
"title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX696836",
"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696836\u0026articleURL=XenServer_Security_Update_for_Multiple_Issues"
}
]
}
CERTFR-2026-AVI-0885
Vulnerability from certfr_avis - Published: 2026-07-15 - Updated: 2026-07-15
De multiples vulnérabilités ont été découvertes dans les produits Citrix. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Citrix | Citrix Secure Access client | Secure Access Client versions antérieures à 26.6.1.20 pour Windows | ||
| Citrix | N/A | Endpoint Analysis Client versions antérieures à 26.5.1.7 pour Windows | ||
| Citrix | XenServer | XenCenter versions antérieures à 2026.4.0 | ||
| Citrix | XenServer | XenCenter SDK client versions antérieures à 26.15.0 pour PowerShell et C# |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Secure Access Client versions ant\u00e9rieures \u00e0 26.6.1.20 pour Windows",
"product": {
"name": "Citrix Secure Access client",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Endpoint Analysis Client versions ant\u00e9rieures \u00e0 26.5.1.7 pour Windows",
"product": {
"name": "N/A",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "XenCenter versions ant\u00e9rieures \u00e0 2026.4.0",
"product": {
"name": "XenServer",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "XenCenter SDK client versions ant\u00e9rieures \u00e0 26.15.0 pour PowerShell et C#",
"product": {
"name": "XenServer",
"vendor": {
"name": "Citrix",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-53565",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53565"
},
{
"name": "CVE-2026-42491",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42491"
},
{
"name": "CVE-2026-53566",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53566"
}
],
"initial_release_date": "2026-07-15T00:00:00",
"last_revision_date": "2026-07-15T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0885",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-07-15T00:00:00.000000"
}
],
"risks": [
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Citrix. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Citrix",
"vendor_advisories": [
{
"published_at": "2026-07-14",
"title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX696811",
"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696811\u0026articleURL=XenServer_Security_Update_for_CVE_2026_42491"
},
{
"published_at": "2026-07-14",
"title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX696734",
"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696734\u0026articleURL=Citrix_Secure_Access_Client_for_Windows_and_Citrix_Endpoint_Analysis_Client_for_Windows_Security_Bulletin_for_CVE_2026_53565_and_CVE_2026_53566"
}
]
}
CERTFR-2026-ALE-011
Vulnerability from certfr_alerte - Published: 2026-09-28 - Updated: 2026-09-30
[Mise à jour du 30 septembre 2026]
Dans un billet de blogue du 29 septembre 2026 (cf. section Documentation), Mandiant et Google Threat Intelligence Group (GTIG) fournissent des indicateurs de compromission ainsi que des règles de détection au format YARA. Ceux-ci n'ont pas été qualifiés par l'ANSSI.
Selon Google, la présence de ces motifs est caractéristique d'une exploitation réussie:
* 0-PPE-0 : default SSLLOG SSL_HANDSHAKE_FAILURE 0 : SPCBId - ClientIP - ClientPort - VserverServiceIP - VserverServicePort 443 - ClientVersion DTLSv1.0 - CipherSuite "TLS1-AES-256-CBC-SHA" - Session New - Reason "Handshake failure-Internal Error" (dans Syslog)
* qat0: Process NSPPE-<##> exit with orphan rings 5:500
(dans /var/log/messages)
pitboss[<##>]: pitboss NOT restarting NSPPE-<##> (\<PID>)
Le CERT-FR a également connaissance d'une preuve de concept publique pour la vulnérabilité CVE-2026-88772.
[Publication Initiale]
Le 27 septembre 2026, Citrix a publié un avis de sécurité concernant plusieurs vulnérabilités qui affectent NetScaler ADC et Gateway.
Parmi celles-ci, les vulnérabilités CVE-2026-88771 et CVE-2026-88772 permettent une exécution de code arbitraire à distance par un attaquant non authentifié.
Ces vulnérabilités sont activement exploitées et les exploitations ont commencé avant la disponibilité des correctifs.
De plus, l'éditeur indique que si les correctifs n'ont pas été installés, tous les équipements sont vulnérables dans leur configuration par défaut.
Dans son billet de blogue (cf. section Documentation), Citrix indique mettre des indicateurs de compromission à disposition de ses clients par le biais de la console Netscaler.
[Mise à jour du 28 septembre 2026]
Le CERT-FR a connaissance d'une preuve de concept publique pour la vulnérabilité CVE-2026-88771.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Citrix | NetScaler ADC | Citrix NetScaler ADC versions 14.1-FIPS antérieures à 14.1-73.37 FIPS | ||
| Citrix | NetScaler ADC | Citrix NetScaler ADC versions 13.1-FIPS antérieures à 13.1-NDcPP 13.1.37.279 | ||
| Citrix | NetScaler Gateway | NetScaler Gateway versions 13.1.x antérieures à 13.1-64.23 | ||
| Citrix | NetScaler Gateway | NetScaler Gateway versions 14.1.x antérieures à 14.1-73.37 | ||
| Citrix | NetScaler ADC | Citrix NetScaler ADC versions 14.1.x antérieures à 14.1-73.37 | ||
| Citrix | NetScaler ADC | Citrix NetScaler ADC versions 13.1.x antérieures à 13.1-64.23 |
References
| Title | Publication Time | Tags | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Citrix NetScaler ADC versions 14.1-FIPS ant\u00e9rieures \u00e0 14.1-73.37 FIPS",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Citrix NetScaler ADC versions 13.1-FIPS ant\u00e9rieures \u00e0 13.1-NDcPP 13.1.37.279",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "NetScaler Gateway versions 13.1.x ant\u00e9rieures \u00e0 13.1-64.23",
"product": {
"name": "NetScaler Gateway",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "NetScaler Gateway versions 14.1.x ant\u00e9rieures \u00e0 14.1-73.37",
"product": {
"name": "NetScaler Gateway",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Citrix NetScaler ADC versions 14.1.x ant\u00e9rieures \u00e0 14.1-73.37",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
},
{
"description": "Citrix NetScaler ADC versions 13.1.x ant\u00e9rieures \u00e0 13.1-64.23",
"product": {
"name": "NetScaler ADC",
"vendor": {
"name": "Citrix",
"scada": false
}
}
}
],
"affected_systems_content": "",
"closed_at": null,
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-88771",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88771"
},
{
"name": "CVE-2026-88772",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-88772"
}
],
"initial_release_date": "2026-09-28T00:00:00",
"last_revision_date": "2026-09-30T00:00:00",
"links": [
{
"title": "Billet de blogue Google du 29 septembre 2026",
"url": "https://cloud.google.com/blog/topics/threat-intelligence/defending-against-active-exploitation-of-citrix-netscaler-adc-and-gateway-appliances"
},
{
"title": "Billet de blogue Citrix du 27 septembre 2026",
"url": "https://community.citrix.com/techzone-blogs/110_security-updates/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve-2026-88771-through-cve-2026-88778/#Indicators_of_Compromise__cabcb4"
},
{
"title": "Avis CERT-FR CERTFR-2026-AVI-1235 du 28 septembre 2026",
"url": "/avis/CERTFR-2026-AVI-1235/"
}
],
"reference": "CERTFR-2026-ALE-011",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-09-28T00:00:00.000000"
},
{
"description": "Ajout de l\u0027existence d\u0027une preuve de concept pour la vuln\u00e9rabilit\u00e9 CVE-2026-88771.",
"revision_date": "2026-09-28T00:00:00.000000"
},
{
"description": "Ajout du billet de blogue Google et des indicateurs de compromission.",
"revision_date": "2026-09-30T00:00:00.000000"
},
{
"description": "Ajout de l\u0027existence d\u0027une preuve de concept pour la vuln\u00e9rabilit\u00e9 CVE-2026-88772.",
"revision_date": "2026-09-30T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
}
],
"summary": "\u003cspan class=\"important-content\"\u003e[Mise \u00e0 jour du 30 septembre 2026]\u003c/span\u003e\u003cbr\u003e\nDans un billet de blogue du 29 septembre 2026 (cf. section Documentation), Mandiant et Google Threat Intelligence Group (GTIG) fournissent des indicateurs de compromission ainsi que des r\u00e8gles de d\u00e9tection au format YARA. Ceux-ci n\u0027ont pas \u00e9t\u00e9 qualifi\u00e9s par l\u0027ANSSI.\n\nSelon Google, la pr\u00e9sence de ces motifs est caract\u00e9ristique d\u0027une exploitation r\u00e9ussie:\n* \u003ccode\u003e0-PPE-0 : default SSLLOG SSL_HANDSHAKE_FAILURE 0 : SPCBId - ClientIP - ClientPort - VserverServiceIP - VserverServicePort 443 - ClientVersion DTLSv1.0 - CipherSuite \"TLS1-AES-256-CBC-SHA\" - Session New - Reason \"Handshake failure-Internal Error\"\u003c/code\u003e (dans *Syslog*)\n* \u003ccode\u003eqat0: Process \u003cPID\u003e NSPPE-\u003c##\u003e exit with orphan rings 5:500\n\u003cbr\u003epitboss[\u003c##\u003e]: pitboss \u003cDATETIME\u003e NOT restarting NSPPE-\u003c##\u003e (\\\u003cPID\\\u003e)\u003c/code\u003e (dans */var/log/messages*)\n\nLe CERT-FR a \u00e9galement connaissance d\u0027une preuve de concept publique pour la vuln\u00e9rabilit\u00e9 CVE-2026-88772.\n\n**[Publication Initiale]**\u003cbr\u003e\nLe 27 septembre 2026, Citrix a publi\u00e9 un avis de s\u00e9curit\u00e9 concernant plusieurs vuln\u00e9rabilit\u00e9s qui affectent NetScaler ADC et Gateway. \nParmi celles-ci, les vuln\u00e9rabilit\u00e9s CVE-2026-88771 et CVE-2026-88772 permettent une ex\u00e9cution de code arbitraire \u00e0 distance par un attaquant non authentifi\u00e9. \n\nCes vuln\u00e9rabilit\u00e9s sont activement exploit\u00e9es et les exploitations ont commenc\u00e9 avant la disponibilit\u00e9 des correctifs.\n\nDe plus, l\u0027\u00e9diteur indique que si les correctifs n\u0027ont pas \u00e9t\u00e9 install\u00e9s, tous les \u00e9quipements sont vuln\u00e9rables dans leur configuration par d\u00e9faut.\n\nDans son billet de blogue (cf. section Documentation), Citrix indique mettre des indicateurs de compromission \u00e0 disposition de ses clients par le biais de la console Netscaler.\n\n**[Mise \u00e0 jour du 28 septembre 2026]**\u003cbr\u003e\nLe CERT-FR a connaissance d\u0027une preuve de concept publique pour la vuln\u00e9rabilit\u00e9 CVE-2026-88771.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Citrix NetScaler ADC et Gateway",
"vendor_advisories": [
{
"published_at": "2026-09-27",
"title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX697096",
"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096\u0026articleURL=Citrix_NetScaler_ADC_and_Citrix_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_88771_CVE_2026_88772_CVE_2026_88773_CVE_2026_88774_CVE_2026_88775_CVE_2026_88776_CVE_2026_88777_and_CVE_2026_88778"
}
]
}
CVE-2026-88778 (GCVE-0-2026-88778)
Vulnerability from nvd – Published: 2026-09-27 16:43 – Updated: 2026-09-29 16:35
VLAI
EPSS
VEX
Title
TCP Initial Sequence Number (ISN) prediction
Summary
Predictable exact value from previous values vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 16:34 UTC
CWE
- CWE-342 - Predictable exact value from previous values
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) Affected: 0 , < 14.1-73.37 FIPS (Patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (Patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) |
Date Public
2026-09-27 15:30
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CVE-2026-88777 (GCVE-0-2026-88777)
Vulnerability from nvd – Published: 2026-09-27 16:37 – Updated: 2026-09-29 21:01
VLAI
EPSS
VEX
Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Summary
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable or erroneous behavior or Denial of Service
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:07 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88776 (GCVE-0-2026-88776)
Vulnerability from nvd – Published: 2026-09-27 16:36 – Updated: 2026-09-29 16:06
VLAI
EPSS
VEX
Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Summary
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
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Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:11 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
Date Public
2026-09-27 15:30
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CVE-2026-88775 (GCVE-0-2026-88775)
Vulnerability from nvd – Published: 2026-09-27 16:21 – Updated: 2026-09-29 15:15
VLAI
EPSS
VEX
Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Summary
Memory overflow vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
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Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:14 UTC
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
0 , < 14.1-73.37
(patch)
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|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88774 (GCVE-0-2026-88774)
Vulnerability from nvd – Published: 2026-09-27 16:14 – Updated: 2026-09-29 15:24
VLAI
EPSS
VEX
Title
Feature policy bypass due to improper HTTP URL based expression usage
Summary
Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to a feature policy bypass due to improper HTTP URL based expression usage.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:22 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
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Affected:
0 , < 14.1-73.37
(patch)
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CVE-2026-88773 (GCVE-0-2026-88773)
Vulnerability from nvd – Published: 2026-09-27 16:20 – Updated: 2026-09-29 15:21
VLAI
EPSS
VEX
Title
HTTP Request Smuggling
Summary
Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1-37.279 and NDcPP; Gateway: before 14.1-73.37 FIPS and before 13.1-64.23.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:17 UTC
CWE
- CWE-444 - Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) Affected: 0 , < 14.1-73.37 FIPS (Patch) Affected: 0 , < 13.1-37.279 and NDcPP (Patch) |
|
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Affected:
0 , < 14.1-73.37 FIPS
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) |
Date Public
2026-09-27 15:30
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CVE-2026-88772 (GCVE-0-2026-88772)
Vulnerability from nvd – Published: 2026-09-27 16:09 – Updated: 2026-09-28 03:55Title
Memory overflow vulnerability leading to Remote Code Execution or Denial of Service
Summary
Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to Remote Code Execution or Denial of Service
Severity
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-27 00:00 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88771 (GCVE-0-2026-88771)
Vulnerability from nvd – Published: 2026-09-27 16:02 – Updated: 2026-09-29 03:55Title
A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands
Summary
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated attacker to execute arbitrary commands.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-27 00:00 UTC
CWE
- CWE-20 - Improper input validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
Date Public
2026-09-27 15:51
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CVE-2026-78547 (GCVE-0-2026-78547)
Vulnerability from nvd – Published: 2026-09-11 19:07 – Updated: 2026-09-11 19:34
VLAI
EPSS
VEX
Title
Out-of-Bounds Write
Summary
Out-of-bounds write vulnerability in Citrix Citrix Workspace app for Windows.
This issue affects Citrix Workspace app for Windows: before 2603.11 Current Release (CR), before 2507.1 LTSR CU3, and before LTSR 2607.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 19:34 UTC
CWE
- CWE-787 - Out-of-bounds write
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix | Citrix Workspace app for Windows |
Affected:
0 , < 2603.11 Current Release (CR)
(patch)
Affected: 0 , < 2507.1 LTSR CU3 (patch) Affected: 0 , < LTSR 2607 (patch) |
Date Public
2026-09-08 18:58
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CVE-2026-19490 (GCVE-0-2026-19490)
Vulnerability from nvd – Published: 2026-08-19 12:54 – Updated: 2026-09-10 03:55Title
NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490
Summary
Vulnerability in NetScaler ADC and NetScaler Gateway.
This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 00:00 UTC
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
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CVE-2026-18751 (GCVE-0-2026-18751)
Vulnerability from nvd – Published: 2026-08-18 12:26 – Updated: 2026-08-19 03:55
VLAI
EPSS
VEX
Title
Citrix Workspace App for Mac Security Bulletin for CVE-2026-18751
Summary
External control of file name or path vulnerability in Citrix WorkSpace App on MacOS.
This issue affects WorkSpace App: 2607.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 00:00 UTC
CWE
- CWE-73 - External control of file name or path
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix | WorkSpace App |
Affected:
2607
(patch)
|
Date Public
2026-08-18 12:00
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CVE-2026-53566 (GCVE-0-2026-53566)
Vulnerability from nvd – Published: 2026-07-14 13:12 – Updated: 2026-07-14 13:56
VLAI
EPSS
VEX
Title
Out-of-bounds memory read
Summary
Out-of-bounds read vulnerability in Citrix Citrix Secure Access Client for Windows.
This issue affects Citrix Secure Access Client for Windows: before 26.6.1.20.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 13:56 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix | Citrix Secure Access Client for Windows |
Affected:
0 , < 26.6.1.20
(patch)
|
Date Public
2026-07-14 12:00
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CVE-2026-53565 (GCVE-0-2026-53565)
Vulnerability from nvd – Published: 2026-07-14 12:49 – Updated: 2026-07-15 04:00
VLAI
EPSS
VEX
Title
Local Privilege escalation allows a low-privileged user to gain SYSTEM privileges
Summary
Improper Privilege Management vulnerability in Citrix Secure Access Client for Windows, Citrix Citrix Endpoint Analysis Client for Windows.
This issue affects Secure Access Client for Windows: before 26.6.1.20; Citrix Endpoint Analysis Client for Windows: before 26. 5.1.7.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 00:00 UTC
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix | Secure Access Client for Windows |
Affected:
0 , < 26.6.1.20
(patch)
|
|
| Citrix | Citrix Endpoint Analysis Client for Windows |
Affected:
0 , < 26. 5.1.7
(patch)
|
Date Public
2026-07-14 12:00
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CVE-2026-88778 (GCVE-0-2026-88778)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:43 – Updated: 2026-09-29 16:35
VLAI
EPSS
VEX
Title
TCP Initial Sequence Number (ISN) prediction
Summary
Predictable exact value from previous values vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 16:34 UTC
CWE
- CWE-342 - Predictable exact value from previous values
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) Affected: 0 , < 14.1-73.37 FIPS (Patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (Patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) |
Date Public
2026-09-27 15:30
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CVE-2026-88777 (GCVE-0-2026-88777)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:37 – Updated: 2026-09-29 21:01
VLAI
EPSS
VEX
Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Summary
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable or erroneous behavior or Denial of Service
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:07 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88776 (GCVE-0-2026-88776)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:36 – Updated: 2026-09-29 16:06
VLAI
EPSS
VEX
Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Summary
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable or erroneous behavior or Denial of Service
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:11 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
Date Public
2026-09-27 15:30
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CVE-2026-88775 (GCVE-0-2026-88775)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:21 – Updated: 2026-09-29 15:15
VLAI
EPSS
VEX
Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Summary
Memory overflow vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:14 UTC
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88773 (GCVE-0-2026-88773)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:20 – Updated: 2026-09-29 15:21
VLAI
EPSS
VEX
Title
HTTP Request Smuggling
Summary
Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1-37.279 and NDcPP; Gateway: before 14.1-73.37 FIPS and before 13.1-64.23.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:17 UTC
CWE
- CWE-444 - Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) Affected: 0 , < 14.1-73.37 FIPS (Patch) Affected: 0 , < 13.1-37.279 and NDcPP (Patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37 FIPS
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) |
Date Public
2026-09-27 15:30
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CVE-2026-88774 (GCVE-0-2026-88774)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:14 – Updated: 2026-09-29 15:24
VLAI
EPSS
VEX
Title
Feature policy bypass due to improper HTTP URL based expression usage
Summary
Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to a feature policy bypass due to improper HTTP URL based expression usage.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:22 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
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|
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Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88772 (GCVE-0-2026-88772)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:09 – Updated: 2026-09-28 03:55Title
Memory overflow vulnerability leading to Remote Code Execution or Denial of Service
Summary
Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to Remote Code Execution or Denial of Service
Severity
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-27 00:00 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88771 (GCVE-0-2026-88771)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:02 – Updated: 2026-09-29 03:55Title
A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands
Summary
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated attacker to execute arbitrary commands.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-27 00:00 UTC
CWE
- CWE-20 - Improper input validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
Date Public
2026-09-27 15:51
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CVE-2026-78547 (GCVE-0-2026-78547)
Vulnerability from cvelistv5 – Published: 2026-09-11 19:07 – Updated: 2026-09-11 19:34
VLAI
EPSS
VEX
Title
Out-of-Bounds Write
Summary
Out-of-bounds write vulnerability in Citrix Citrix Workspace app for Windows.
This issue affects Citrix Workspace app for Windows: before 2603.11 Current Release (CR), before 2507.1 LTSR CU3, and before LTSR 2607.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 19:34 UTC
CWE
- CWE-787 - Out-of-bounds write
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix | Citrix Workspace app for Windows |
Affected:
0 , < 2603.11 Current Release (CR)
(patch)
Affected: 0 , < 2507.1 LTSR CU3 (patch) Affected: 0 , < LTSR 2607 (patch) |
Date Public
2026-09-08 18:58
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CVE-2026-19490 (GCVE-0-2026-19490)
Vulnerability from cvelistv5 – Published: 2026-08-19 12:54 – Updated: 2026-09-10 03:55Title
NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490
Summary
Vulnerability in NetScaler ADC and NetScaler Gateway.
This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 00:00 UTC
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
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CVE-2026-18751 (GCVE-0-2026-18751)
Vulnerability from cvelistv5 – Published: 2026-08-18 12:26 – Updated: 2026-08-19 03:55
VLAI
EPSS
VEX
Title
Citrix Workspace App for Mac Security Bulletin for CVE-2026-18751
Summary
External control of file name or path vulnerability in Citrix WorkSpace App on MacOS.
This issue affects WorkSpace App: 2607.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 00:00 UTC
CWE
- CWE-73 - External control of file name or path
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix | WorkSpace App |
Affected:
2607
(patch)
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Date Public
2026-08-18 12:00
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