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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9841 vulnerabilities reference this CWE, most recent first.
GHSA-H22R-8QX2-2MV3
Vulnerability from github – Published: 2026-03-24 15:30 – Updated: 2026-06-30 03:35Use-after-free in the Layout: Text and Fonts component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, and Firefox ESR < 140.9.
{
"affected": [],
"aliases": [
"CVE-2026-4696"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-825"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-24T13:16:05Z",
"severity": "CRITICAL"
},
"details": "Use-after-free in the Layout: Text and Fonts component. This vulnerability affects Firefox \u003c 149, Firefox ESR \u003c 115.34, and Firefox ESR \u003c 140.9.",
"id": "GHSA-h22r-8qx2-2mv3",
"modified": "2026-06-30T03:35:58Z",
"published": "2026-03-24T15:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4696"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5930"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8287"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8288"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8289"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8290"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8315"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8427"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8850"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-4696"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2020190"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450740"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4696.json"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-21"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5931"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5932"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6188"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6342"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6917"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7837"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7838"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7839"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7840"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7841"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7842"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7843"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7845"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7858"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8284"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8285"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8286"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H24C-GMWR-H7FW
Vulnerability from github – Published: 2022-05-14 01:51 – Updated: 2022-05-14 01:51The function MP4Free() in mp4property.cpp in libmp4v2 2.1.0 internally calls free() on a invalid pointer, raising a SIGABRT signal.
{
"affected": [],
"aliases": [
"CVE-2018-17236"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-09-20T06:29:00Z",
"severity": "MODERATE"
},
"details": "The function MP4Free() in mp4property.cpp in libmp4v2 2.1.0 internally calls free() on a invalid pointer, raising a SIGABRT signal.",
"id": "GHSA-h24c-gmwr-h7fw",
"modified": "2022-05-14T01:51:34Z",
"published": "2022-05-14T01:51:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17236"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1629453"
},
{
"type": "WEB",
"url": "https://github.com/enzo1982/mp4v2/releases/tag/v2.1.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H259-GWQJ-5HJ7
Vulnerability from github – Published: 2025-10-14 18:30 – Updated: 2025-10-14 18:30Use after free in Windows PrintWorkflowUserSvc allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-55686"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T17:15:49Z",
"severity": "HIGH"
},
"details": "Use after free in Windows PrintWorkflowUserSvc allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-h259-gwqj-5hj7",
"modified": "2025-10-14T18:30:31Z",
"published": "2025-10-14T18:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55686"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55686"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H262-73J6-24H2
Vulnerability from github – Published: 2026-05-08 15:31 – Updated: 2026-05-11 09:30In the Linux kernel, the following vulnerability has been resolved:
sched_ext: Remove redundant css_put() in scx_cgroup_init()
The iterator css_for_each_descendant_pre() walks the cgroup hierarchy under cgroup_lock(). It does not increment the reference counts on yielded css structs.
According to the cgroup documentation, css_put() should only be used to release a reference obtained via css_get() or css_tryget_online(). Since the iterator does not use either of these to acquire a reference, calling css_put() in the error path of scx_cgroup_init() causes a refcount underflow.
Remove the unbalanced css_put() to prevent a potential Use-After-Free (UAF) vulnerability.
{
"affected": [],
"aliases": [
"CVE-2026-43438"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-08T15:16:56Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: Remove redundant css_put() in scx_cgroup_init()\n\nThe iterator css_for_each_descendant_pre() walks the cgroup hierarchy\nunder cgroup_lock(). It does not increment the reference counts on\nyielded css structs.\n\nAccording to the cgroup documentation, css_put() should only be used\nto release a reference obtained via css_get() or css_tryget_online().\nSince the iterator does not use either of these to acquire a reference,\ncalling css_put() in the error path of scx_cgroup_init() causes a\nrefcount underflow.\n\nRemove the unbalanced css_put() to prevent a potential Use-After-Free\n(UAF) vulnerability.",
"id": "GHSA-h262-73j6-24h2",
"modified": "2026-05-11T09:30:31Z",
"published": "2026-05-08T15:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43438"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1336b579f6079fb8520be03624fcd9ba443c930b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6eaaa67d6998f6c30c462b140db8c062e07ec473"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bf50f3285eda8a0173625fcdb5f183f96e1008cd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cc095cd305fddbe25a968e4a78436ff9476cf0f6"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H26X-CV2X-CHJ2
Vulnerability from github – Published: 2022-05-24 17:22 – Updated: 2023-01-27 21:31PlayerGeneric.cpp in MilkyTracker through 1.02.00 has a use-after-free in the PlayerGeneric destructor.
{
"affected": [],
"aliases": [
"CVE-2020-15569"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-07-06T14:15:00Z",
"severity": "MODERATE"
},
"details": "PlayerGeneric.cpp in MilkyTracker through 1.02.00 has a use-after-free in the PlayerGeneric destructor.",
"id": "GHSA-h26x-cv2x-chj2",
"modified": "2023-01-27T21:31:12Z",
"published": "2022-05-24T17:22:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15569"
},
{
"type": "WEB",
"url": "https://github.com/milkytracker/MilkyTracker/commit/7afd55c42ad80d01a339197a2d8b5461d214edaf"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00023.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H27F-FW5Q-C2GH
Vulnerability from github – Published: 2023-12-15 00:31 – Updated: 2026-02-25 18:31Use after free in WebRTC in Google Chrome prior to 120.0.6099.109 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2023-6705"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-12-14T22:15:44Z",
"severity": "HIGH"
},
"details": "Use after free in WebRTC in Google Chrome prior to 120.0.6099.109 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-h27f-fw5q-c2gh",
"modified": "2026-02-25T18:31:26Z",
"published": "2023-12-15T00:31:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6705"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop_12.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1505708"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6NWZ23ZJ62XKWVNGHSIZQYILVJWH5BLI"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-34"
}
],
"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-H295-RCC5-87JH
Vulnerability from github – Published: 2023-08-23 00:30 – Updated: 2024-01-31 18:31Use after free in Vulkan in Google Chrome prior to 116.0.5845.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2023-4430"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-23T00:15:09Z",
"severity": "HIGH"
},
"details": "Use after free in Vulkan in Google Chrome prior to 116.0.5845.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-h295-rcc5-87jh",
"modified": "2024-01-31T18:31:19Z",
"published": "2023-08-23T00:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4430"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2023/08/chrome-desktop-stable-update.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1469542"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/27NR3KG553CG6LGPMP6SHWEVHTYPL6RC"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-34"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5483"
}
],
"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-H296-3G4R-F68J
Vulnerability from github – Published: 2023-06-13 18:30 – Updated: 2025-05-05 18:32Use after free in Autofill payments in Google Chrome prior to 114.0.5735.133 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)
{
"affected": [],
"aliases": [
"CVE-2023-3214"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-13T18:15:22Z",
"severity": "HIGH"
},
"details": "Use after free in Autofill payments in Google Chrome prior to 114.0.5735.133 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)",
"id": "GHSA-h296-3g4r-f68j",
"modified": "2025-05-05T18:32:41Z",
"published": "2023-06-13T18:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3214"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2023/06/stable-channel-update-for-desktop_13.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1450568"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JEH75UOM7FAXDUPC37YHP7ONL2HSDIJR"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O362DC3ZCFRXVHOXMPIL73YOWABQEUYD"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202311-11"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-34"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5428"
}
],
"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-H2C6-9FCC-CH5X
Vulnerability from github – Published: 2022-05-14 03:10 – Updated: 2022-05-14 03:10In the video driver function set_output_buffers(), binfo can be accessed after being freed in a failure scenario in all Android releases from CAF (Android for MSM, Firefox OS for MSM, QRD Android) using the Linux Kernel.
{
"affected": [],
"aliases": [
"CVE-2018-5844"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-06-12T20:29:00Z",
"severity": "HIGH"
},
"details": "In the video driver function set_output_buffers(), binfo can be accessed after being freed in a failure scenario in all Android releases from CAF (Android for MSM, Firefox OS for MSM, QRD Android) using the Linux Kernel.",
"id": "GHSA-h2c6-9fcc-ch5x",
"modified": "2022-05-14T03:10:27Z",
"published": "2022-05-14T03:10:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5844"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2018-05-01"
},
{
"type": "WEB",
"url": "https://www.codeaurora.org/security-bulletin/2018/05/11/may-2018-code-aurora-security-bulletin-2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H2CC-WX97-XP8V
Vulnerability from github – Published: 2026-04-08 00:30 – Updated: 2026-05-12 15:31Issue summary: An uncommon configuration of clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-free on the client side.
Impact summary: A use after free can have a range of potential consequences such as the corruption of valid data, crashes or execution of arbitrary code.
However, the issue only affects clients that make use of TLSA records with both the PKIX-TA(0/PKIX-EE(1) certificate usages and the DANE-TA(2) certificate usage.
By far the most common deployment of DANE is in SMTP MTAs for which RFC7672 recommends that clients treat as 'unusable' any TLSA records that have the PKIX certificate usages. These SMTP (or other similar) clients are not vulnerable to this issue. Conversely, any clients that support only the PKIX usages, and ignore the DANE-TA(2) usage are also not vulnerable.
The client would also need to be communicating with a server that publishes a TLSA RRset with both types of TLSA records.
No FIPS modules are affected by this issue, the problem code is outside the FIPS module boundary.
{
"affected": [],
"aliases": [
"CVE-2026-28387"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-07T22:16:20Z",
"severity": "HIGH"
},
"details": "Issue summary: An uncommon configuration of clients performing DANE TLSA-based\nserver authentication, when paired with uncommon server DANE TLSA records, may\nresult in a use-after-free and/or double-free on the client side.\n\nImpact summary: A use after free can have a range of potential consequences\nsuch as the corruption of valid data, crashes or execution of arbitrary code.\n\nHowever, the issue only affects clients that make use of TLSA records with both\nthe PKIX-TA(0/PKIX-EE(1) certificate usages and the DANE-TA(2) certificate\nusage.\n\nBy far the most common deployment of DANE is in SMTP MTAs for which RFC7672\nrecommends that clients treat as \u0027unusable\u0027 any TLSA records that have the PKIX\ncertificate usages. These SMTP (or other similar) clients are not vulnerable\nto this issue. Conversely, any clients that support only the PKIX usages, and\nignore the DANE-TA(2) usage are also not vulnerable.\n\nThe client would also need to be communicating with a server that publishes a\nTLSA RRset with both types of TLSA records.\n\nNo FIPS modules are affected by this issue, the problem code is outside the\nFIPS module boundary.",
"id": "GHSA-h2cc-wx97-xp8v",
"modified": "2026-05-12T15:31:15Z",
"published": "2026-04-08T00:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28387"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/07e727d304746edb49a98ee8f6ab00256e1f012b"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/258a8f63b26995ba357f4326da00e19e29c6acbe"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/444958deaf450aea819171f97ae69eaedede42c3"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/7a4e08cee62a728d32e60b0de89e6764339df0a7"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/ec03fa050b3346997ed9c5fef3d0e16ad7db8177"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://openssl-library.org/news/secadv/20260407.txt"
}
],
"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"
}
]
}
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.