CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
11157 vulnerabilities reference this CWE, most recent first.
GHSA-FXP3-2X7H-7VX9
Vulnerability from github – Published: 2022-05-13 01:33 – Updated: 2022-05-13 01:33This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDF documents. By manipulating a document's elements, an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-6890.
{
"affected": [],
"aliases": [
"CVE-2018-17679"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-01-24T04:29:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDF documents. By manipulating a document\u0027s elements, an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-6890.",
"id": "GHSA-fxp3-2x7h-7vx9",
"modified": "2022-05-13T01:33:52Z",
"published": "2022-05-13T01:33:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17679"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-18-1180"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FXQP-H355-F3R4
Vulnerability from github – Published: 2022-12-24 00:30 – Updated: 2023-01-04 21:30An issue was discovered in the Linux kernel 5.10.x before 5.10.155. A use-after-free in io_sqpoll_wait_sq in fs/io_uring.c allows an attacker to crash the kernel, resulting in denial of service. finish_wait can be skipped. An attack can occur in some situations by forking a process and then quickly terminating it. NOTE: later kernel versions, such as the 5.15 longterm series, substantially changed the implementation of io_sqpoll_wait_sq.
{
"affected": [],
"aliases": [
"CVE-2022-47946"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-23T22:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in the Linux kernel 5.10.x before 5.10.155. A use-after-free in io_sqpoll_wait_sq in fs/io_uring.c allows an attacker to crash the kernel, resulting in denial of service. finish_wait can be skipped. An attack can occur in some situations by forking a process and then quickly terminating it. NOTE: later kernel versions, such as the 5.15 longterm series, substantially changed the implementation of io_sqpoll_wait_sq.",
"id": "GHSA-fxqp-h355-f3r4",
"modified": "2023-01-04T21:30:19Z",
"published": "2022-12-24T00:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-47946"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.161\u0026id=0f544353fec8e717d37724d95b92538e1de79e86"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2022/12/22/2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/12/27/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FXR6-V647-JGMQ
Vulnerability from github – Published: 2022-05-07 00:01 – Updated: 2022-05-07 00:01The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.
{
"affected": [],
"aliases": [
"CVE-2017-9527"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-06-11T17:29:00Z",
"severity": "HIGH"
},
"details": "The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.",
"id": "GHSA-fxr6-v647-jgmq",
"modified": "2022-05-07T00:01:26Z",
"published": "2022-05-07T00:01:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9527"
},
{
"type": "WEB",
"url": "https://github.com/mruby/mruby/issues/3486"
},
{
"type": "WEB",
"url": "https://github.com/mruby/mruby/commit/5c114c91d4ff31859fcd84cf8bf349b737b90d99"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FXX4-C6Q5-9C62
Vulnerability from github – Published: 2022-05-14 03:46 – Updated: 2022-05-14 03:46Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, resulting in use-after-free conditions when updating the state later on.
{
"affected": [],
"aliases": [
"CVE-2017-15227"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-10-22T20:29:00Z",
"severity": "HIGH"
},
"details": "Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, resulting in use-after-free conditions when updating the state later on.",
"id": "GHSA-fxx4-c6q5-9c62",
"modified": "2022-05-14T03:46:35Z",
"published": "2022-05-14T03:46:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15227"
},
{
"type": "WEB",
"url": "https://irssi.org/security/irssi_sa_2017_10.txt"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2017/dsa-4016"
},
{
"type": "WEB",
"url": "http://openwall.com/lists/oss-security/2017/10/22/4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FXX8-MRM7-3FHG
Vulnerability from github – Published: 2026-07-30 03:31 – Updated: 2026-07-30 21:31Use after free in V8 in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2026-17665"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-30T01:16:28Z",
"severity": "HIGH"
},
"details": "Use after free in V8 in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-fxx8-mrm7-3fhg",
"modified": "2026-07-30T21:31:32Z",
"published": "2026-07-30T03:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17665"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/511277457"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-G23G-4C47-CQR9
Vulnerability from github – Published: 2024-05-03 03:30 – Updated: 2024-05-03 03:30Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of Annotation objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21019.
{
"affected": [],
"aliases": [
"CVE-2023-38107"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T02:15:54Z",
"severity": "HIGH"
},
"details": "Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the handling of Annotation objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21019.",
"id": "GHSA-g23g-4c47-cqr9",
"modified": "2024-05-03T03:30:55Z",
"published": "2024-05-03T03:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38107"
},
{
"type": "WEB",
"url": "https://www.foxit.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-985"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-G23M-H4V3-G2QQ
Vulnerability from github – Published: 2024-06-11 15:31 – Updated: 2024-07-03 18:44If a garbage collection was triggered at the right time, a use-after-free could have occurred during object transplant. This vulnerability affects Firefox < 127 and Firefox ESR < 115.12.
{
"affected": [],
"aliases": [
"CVE-2024-5688"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-11T13:15:50Z",
"severity": "HIGH"
},
"details": "If a garbage collection was triggered at the right time, a use-after-free could have occurred during object transplant. This vulnerability affects Firefox \u003c 127 and Firefox ESR \u003c 115.12.",
"id": "GHSA-g23m-h4v3-g2qq",
"modified": "2024-07-03T18:44:46Z",
"published": "2024-06-11T15:31:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5688"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1895086"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00000.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00010.html"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2024-25"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2024-26"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2024-28"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-G24C-88QG-X3XP
Vulnerability from github – Published: 2022-05-24 17:04 – Updated: 2022-05-24 17:04Adobe Acrobat and Reader versions , 2019.021.20056 and earlier, 2017.011.30152 and earlier, 2017.011.30155 and earlier version, 2017.011.30152 and earlier, and 2015.006.30505 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution .
{
"affected": [],
"aliases": [
"CVE-2019-16445"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-12-19T15:15:00Z",
"severity": "HIGH"
},
"details": "Adobe Acrobat and Reader versions , 2019.021.20056 and earlier, 2017.011.30152 and earlier, 2017.011.30155 and earlier version, 2017.011.30152 and earlier, and 2015.006.30505 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution .",
"id": "GHSA-g24c-88qg-x3xp",
"modified": "2022-05-24T17:04:42Z",
"published": "2022-05-24T17:04:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-16445"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb19-55.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-G267-WR3P-8PFF
Vulnerability from github – Published: 2026-09-29 15:31 – Updated: 2026-09-30 18:33Privilege escalation due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
{
"affected": [],
"aliases": [
"CVE-2026-100797"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-29T13:17:44Z",
"severity": "HIGH"
},
"details": "Privilege escalation due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.",
"id": "GHSA-g267-wr3p-8pff",
"modified": "2026-09-30T18:33:11Z",
"published": "2026-09-29T15:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100797"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2050542"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-100"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-101"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-102"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-103"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-97"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-98"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-99"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-G2CF-Q8FG-WHRR
Vulnerability from github – Published: 2024-05-19 09:34 – Updated: 2024-07-03 18:42In the Linux kernel, the following vulnerability has been resolved:
smb: client: guarantee refcounted children from parent session
Avoid potential use-after-free bugs when walking DFS referrals, mounting and performing DFS failover by ensuring that all children from parent @tcon->ses are also refcounted. They're all needed across the entire DFS mount. Get rid of @tcon->dfs_ses_list while we're at it, too.
{
"affected": [],
"aliases": [
"CVE-2024-35869"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-19T09:15:08Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: guarantee refcounted children from parent session\n\nAvoid potential use-after-free bugs when walking DFS referrals,\nmounting and performing DFS failover by ensuring that all children\nfrom parent @tcon-\u003eses are also refcounted. They\u0027re all needed across\nthe entire DFS mount. Get rid of @tcon-\u003edfs_ses_list while we\u0027re at\nit, too.",
"id": "GHSA-g2cf-q8fg-whrr",
"modified": "2024-07-03T18:42:30Z",
"published": "2024-05-19T09:34:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35869"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/062a7f0ff46eb57aff526897bd2bebfdb1d3046a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/645f332c6b63499cc76197f9b6bffcc659ba64cc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e1db9ae87b7148c021daee1fcc4bc71b2ac58a79"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.