Common Weakness Enumeration
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9901 vulnerabilities reference this CWE, most recent first.
GHSA-FPC8-25P9-JFMR
Vulnerability from github – Published: 2025-10-20 15:30 – Updated: 2025-10-20 15:30
VLAI
Details
Use After Free in WebSocket server implementation in lws_handshake_server in warmcat libwebsockets may allow an attacker, in specific configurations where the user provides a callback function that handles LWS_CALLBACK_HTTP_CONFIRM_UPGRADE, to achieve denial of service.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-11677"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-20T14:15:39Z",
"severity": "MODERATE"
},
"details": "Use After Free in WebSocket server implementation in lws_handshake_server in warmcat libwebsockets may allow an attacker, in specific configurations where the user provides a callback function that handles\u00a0LWS_CALLBACK_HTTP_CONFIRM_UPGRADE, to achieve denial of service.",
"id": "GHSA-fpc8-25p9-jfmr",
"modified": "2025-10-20T15:30:25Z",
"published": "2025-10-20T15:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11677"
},
{
"type": "WEB",
"url": "https://libwebsockets.org/git/libwebsockets/commit?id=2f082ec31261f556969160143ba94875d783971a"
},
{
"type": "WEB",
"url": "https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-11677"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-FPFC-28JJ-83PF
Vulnerability from github – Published: 2022-05-17 02:21 – Updated: 2022-05-17 02:21
VLAI
Details
Use-after-free vulnerability in Adobe Reader and Acrobat before 11.0.18, Acrobat and Acrobat Reader DC Classic before 15.006.30243, and Acrobat and Acrobat Reader DC Continuous before 15.020.20039 on Windows and OS X allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-1089, CVE-2016-1091, CVE-2016-6944, CVE-2016-6946, CVE-2016-6949, CVE-2016-6952, CVE-2016-6953, CVE-2016-6961, CVE-2016-6962, CVE-2016-6963, CVE-2016-6964, CVE-2016-6965, CVE-2016-6967, CVE-2016-6968, CVE-2016-6969, CVE-2016-6971, CVE-2016-6979, CVE-2016-6988, and CVE-2016-6993.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2016-6945"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-10-13T19:59:00Z",
"severity": "CRITICAL"
},
"details": "Use-after-free vulnerability in Adobe Reader and Acrobat before 11.0.18, Acrobat and Acrobat Reader DC Classic before 15.006.30243, and Acrobat and Acrobat Reader DC Continuous before 15.020.20039 on Windows and OS X allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-1089, CVE-2016-1091, CVE-2016-6944, CVE-2016-6946, CVE-2016-6949, CVE-2016-6952, CVE-2016-6953, CVE-2016-6961, CVE-2016-6962, CVE-2016-6963, CVE-2016-6964, CVE-2016-6965, CVE-2016-6967, CVE-2016-6968, CVE-2016-6969, CVE-2016-6971, CVE-2016-6979, CVE-2016-6988, and CVE-2016-6993.",
"id": "GHSA-fpfc-28jj-83pf",
"modified": "2022-05-17T02:21:31Z",
"published": "2022-05-17T02:21:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-6945"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb16-33.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/93491"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1036986"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPFV-QQRP-543C
Vulnerability from github – Published: 2024-08-05 15:30 – Updated: 2024-08-05 15:30
VLAI
Details
Transient DOS while parsing fragments of MBSSID IE from beacon frame.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2024-33010"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-05T15:15:48Z",
"severity": "HIGH"
},
"details": "Transient DOS while parsing fragments of MBSSID IE from beacon frame.",
"id": "GHSA-fpfv-qqrp-543c",
"modified": "2024-08-05T15:30:53Z",
"published": "2024-08-05T15:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33010"
},
{
"type": "WEB",
"url": "https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2024-bulletin.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPM3-83RF-2628
Vulnerability from github – Published: 2022-05-24 19:02 – Updated: 2022-05-24 19:02
VLAI
Details
Windows Graphics Component Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31170.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2021-31188"
],
"database_specific": {
"cwe_ids": [
"CWE-269",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-11T19:15:00Z",
"severity": "MODERATE"
},
"details": "Windows Graphics Component Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-31170.",
"id": "GHSA-fpm3-83rf-2628",
"modified": "2022-05-24T19:02:00Z",
"published": "2022-05-24T19:02:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31188"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31188"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-577"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-FPMH-WC67-23JX
Vulnerability from github – Published: 2022-05-14 03:09 – Updated: 2024-10-21 15:32
VLAI
Details
A use-after-free vulnerability during XSLT processing due to poor handling of template parameters. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2017-5439"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-06-11T21:29:00Z",
"severity": "CRITICAL"
},
"details": "A use-after-free vulnerability during XSLT processing due to poor handling of template parameters. This results in a potentially exploitable crash. This vulnerability affects Thunderbird \u003c 52.1, Firefox ESR \u003c 45.9, Firefox ESR \u003c 52.1, and Firefox \u003c 53.",
"id": "GHSA-fpmh-wc67-23jx",
"modified": "2024-10-21T15:32:19Z",
"published": "2022-05-14T03:09:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5439"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:1104"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:1106"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:1201"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1336830"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2017/dsa-3831"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2017-10"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2017-11"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2017-12"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2017-13"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103053"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/97940"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1038320"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPMW-JMCV-QQQ3
Vulnerability from github – Published: 2022-05-24 17:12 – Updated: 2022-05-24 17:12
VLAI
Details
Use after free in audio in Google Chrome prior to 80.0.3987.149 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2020-6428"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-03-23T16:15:00Z",
"severity": "HIGH"
},
"details": "Use after free in audio in Google Chrome prior to 80.0.3987.149 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-fpmw-jmcv-qqq3",
"modified": "2022-05-24T17:12:15Z",
"published": "2022-05-24T17:12:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6428"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_18.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1057593"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2DDNOAGIX5D77TTHT6YPMVJ5WTXTCQEI"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JWANFIR3PYAL5RJQ4AO3ZS2DYMSF2ZGZ"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202003-53"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4645"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00028.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.html"
}
],
"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-FPQ3-4HC6-6RVG
Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-07-03 18:42
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
watchdog: Fix possible use-after-free in wdt_startup()
This module's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the driver's remove function has finished, which would result in a use-after-free.
Fix by calling del_timer_sync(), which makes sure the timer handler has finished, and unable to re-schedule itself.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2021-47324"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T15:15:19Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatchdog: Fix possible use-after-free in wdt_startup()\n\nThis module\u0027s remove path calls del_timer(). However, that function\ndoes not wait until the timer handler finishes. This means that the\ntimer handler may still be running after the driver\u0027s remove function\nhas finished, which would result in a use-after-free.\n\nFix by calling del_timer_sync(), which makes sure the timer handler\nhas finished, and unable to re-schedule itself.",
"id": "GHSA-fpq3-4hc6-6rvg",
"modified": "2024-07-03T18:42:47Z",
"published": "2024-05-21T15:31:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47324"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0ac50a76cf3cd63db000648b3b19f3f98b8aaa76"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/146cc288fb80c662c9c35e7bc58325d1ac0a7875"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/63a3dc24bd053792f84cb4eef0168b1266202a02"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/862f2b5a7c38762ac9e369daefbf361a91aca685"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8adbbe6c86bb13e14f8a19e036ae5f4f5661fd90"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a397cb4576fc2fc802562418b3a50b8f67d60d31"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b4ebf4a4692e84163a69444c70ad515de06e2259"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c08a6b31e4917034f0ed0cb457c3bb209576f542"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dc9403097be52d57a5c9c35efa9be79d166a78af"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPQ5-9JG6-FQQ7
Vulnerability from github – Published: 2024-12-12 03:33 – Updated: 2024-12-12 03:33
VLAI
Details
Input Method Editor (IME) Remote Code Execution Vulnerability
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-49079"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-12T02:04:32Z",
"severity": "HIGH"
},
"details": "Input Method Editor (IME) Remote Code Execution Vulnerability",
"id": "GHSA-fpq5-9jg6-fqq7",
"modified": "2024-12-12T03:33:04Z",
"published": "2024-12-12T03:33:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49079"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49079"
}
],
"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-FPQQ-P5Q5-4FHW
Vulnerability from github – Published: 2023-03-06 15:30 – Updated: 2023-03-13 18:30
VLAI
Details
An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r0p0 through r32p0, Bifrost r0p0 through r41p0 before r42p0, Valhall r19p0 through r41p0 before r42p0, and Avalon r41p0 before r42p0.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-46395"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-06T14:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r0p0 through r32p0, Bifrost r0p0 through r41p0 before r42p0, Valhall r19p0 through r41p0 before r42p0, and Avalon r41p0 before r42p0.",
"id": "GHSA-fpqq-p5q5-4fhw",
"modified": "2023-03-13T18:30:42Z",
"published": "2023-03-06T15:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-46395"
},
{
"type": "WEB",
"url": "https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities"
},
{
"type": "WEB",
"url": "https://developer.arm.com/support/arm-security-updates"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/172855/Android-Arm-Mali-GPU-Arbitrary-Code-Execution.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FPVF-FRM6-625Q
Vulnerability from github – Published: 2026-03-12 14:09 – Updated: 2026-03-12 14:09
VLAI
Summary
ImageMagick has Heap Use-After-Free in ImageMagick MSL decoder
Details
A heap use-after-free vulnerability in ImageMagick's MSL decoder allows an attacker to trigger access to freed memory by crafting an MSL file.
=================================================================
==1500633==ERROR: AddressSanitizer: heap-use-after-free on address 0x527000011550 at pc 0x5612583fa212 bp 0x7ffedb86d160 sp 0x7ffedb86d150
READ of size 8 at 0x527000011550 thread T0
Severity
5.3 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.10.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.10.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.10.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.10.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.10.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.10.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
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],
"aliases": [
"CVE-2026-28687"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-12T14:09:33Z",
"nvd_published_at": "2026-03-10T07:43:43Z",
"severity": "MODERATE"
},
"details": "A heap use-after-free vulnerability in ImageMagick\u0027s MSL decoder allows an attacker to trigger access to freed memory by crafting an MSL file.\n\n```\n=================================================================\n==1500633==ERROR: AddressSanitizer: heap-use-after-free on address 0x527000011550 at pc 0x5612583fa212 bp 0x7ffedb86d160 sp 0x7ffedb86d150\nREAD of size 8 at 0x527000011550 thread T0\n```",
"id": "GHSA-fpvf-frm6-625q",
"modified": "2026-03-12T14:09:34Z",
"published": "2026-03-12T14:09:33Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-fpvf-frm6-625q"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28687"
},
{
"type": "PACKAGE",
"url": "https://github.com/ImageMagick/ImageMagick"
},
{
"type": "WEB",
"url": "https://github.com/dlemstra/Magick.NET/releases/tag/14.10.4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
],
"summary": "ImageMagick has Heap Use-After-Free in ImageMagick MSL decoder"
}
Mitigation
Architecture and Design
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Implementation
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.