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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9821 vulnerabilities reference this CWE, most recent first.
GHSA-9Q7C-3V6C-W3WW
Vulnerability from github – Published: 2025-12-17 21:30 – Updated: 2025-12-17 21:30A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Tahoe 26.2, iOS 26.2 and iPadOS 26.2, Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3. Processing maliciously crafted web content may lead to an unexpected process crash.
{
"affected": [],
"aliases": [
"CVE-2025-43536"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-17T21:16:12Z",
"severity": "MODERATE"
},
"details": "A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Tahoe 26.2, iOS 26.2 and iPadOS 26.2, Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3. Processing maliciously crafted web content may lead to an unexpected process crash.",
"id": "GHSA-9q7c-3v6c-w3ww",
"modified": "2025-12-17T21:30:50Z",
"published": "2025-12-17T21:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-43536"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/125884"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/125885"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/125886"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/125892"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-9Q8Q-5M78-FC9R
Vulnerability from github – Published: 2025-11-11 18:30 – Updated: 2025-11-11 18:30Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2025-62205"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-11T18:15:46Z",
"severity": "HIGH"
},
"details": "Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.",
"id": "GHSA-9q8q-5m78-fc9r",
"modified": "2025-11-11T18:30:22Z",
"published": "2025-11-11T18:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62205"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62205"
}
],
"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-9Q9X-RXH2-6XG8
Vulnerability from github – Published: 2026-01-06 03:31 – Updated: 2026-01-06 21:30In display, there is a possible use after free due to a race condition. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10184084; Issue ID: MSV-4720.
{
"affected": [],
"aliases": [
"CVE-2025-20779"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-06T02:15:42Z",
"severity": "HIGH"
},
"details": "In display, there is a possible use after free due to a race condition. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10184084; Issue ID: MSV-4720.",
"id": "GHSA-9q9x-rxh2-6xg8",
"modified": "2026-01-06T21:30:32Z",
"published": "2026-01-06T03:31:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20779"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/January-2026"
}
],
"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-9QC6-PP76-5928
Vulnerability from github – Published: 2026-04-01 06:31 – Updated: 2026-04-01 15:31Use after free in CSS in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2026-5273"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-01T05:16:00Z",
"severity": "MODERATE"
},
"details": "Use after free in CSS in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-9qc6-pp76-5928",
"modified": "2026-04-01T15:31:13Z",
"published": "2026-04-01T06:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5273"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_31.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/493952652"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-9QCF-4VGG-28RH
Vulnerability from github – Published: 2026-07-01 00:34 – Updated: 2026-07-01 15:35Use after free in Extensions in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2026-13888"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-30T23:17:03Z",
"severity": "HIGH"
},
"details": "Use after free in Extensions in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-9qcf-4vgg-28rh",
"modified": "2026-07-01T15:35:02Z",
"published": "2026-07-01T00:34:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13888"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/500566906"
}
],
"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-9QG2-83JH-JPJ7
Vulnerability from github – Published: 2024-04-03 18:30 – Updated: 2024-04-03 18:30Foxit PDF Reader AcroForm 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 AcroForms. 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-23002.
{
"affected": [],
"aliases": [
"CVE-2024-30366"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-03T17:15:58Z",
"severity": "HIGH"
},
"details": "Foxit PDF Reader AcroForm 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 AcroForms. 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-23002.",
"id": "GHSA-9qg2-83jh-jpj7",
"modified": "2024-04-03T18:30:44Z",
"published": "2024-04-03T18:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30366"
},
{
"type": "WEB",
"url": "https://www.foxit.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-344"
}
],
"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-9QJ4-WR4G-7M6F
Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-30 03:37In the Linux kernel, the following vulnerability has been resolved:
futex: Drop CLONE_THREAD requirement for private default hash alloc
Currently need_futex_hash_allocate_default() depends on strict pthread semantics, abusing CLONE_THREAD. This breaks the non-concurrency assumptions when doing the mm->futex_ref pcpu allocations, leading to bugs[0] when sharing the mm in other ways; ie:
BUG: KASAN: slab-use-after-free in futex_hash_put
... where the +1 bias can end up on a percpu counter that mm->futex_ref no longer points at.
Loosen the check to cover any CLONE_VM clone, except vfork(). Excluding vfork keeps the existing paths untouched (no overhead), and we can't race in the first place: either the parent is suspended and the child runs alone, or mm->futex_ref is already allocated from an earlier CLONE_VM.
{
"affected": [],
"aliases": [
"CVE-2026-52973"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-825"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-24T17:17:07Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfutex: Drop CLONE_THREAD requirement for private default hash alloc\n\nCurrently need_futex_hash_allocate_default() depends on strict pthread\nsemantics, abusing CLONE_THREAD. This breaks the non-concurrency\nassumptions when doing the mm-\u003efutex_ref pcpu allocations, leading to\nbugs[0] when sharing the mm in other ways; ie:\n\n BUG: KASAN: slab-use-after-free in futex_hash_put\n\n... where the +1 bias can end up on a percpu counter that mm-\u003efutex_ref\nno longer points at.\n\nLoosen the check to cover any CLONE_VM clone, except vfork(). Excluding\nvfork keeps the existing paths untouched (no overhead), and we can\u0027t\nrace in the first place: either the parent is suspended and the child\nruns alone, or mm-\u003efutex_ref is already allocated from an earlier\nCLONE_VM.",
"id": "GHSA-9qj4-wr4g-7m6f",
"modified": "2026-06-30T03:37:12Z",
"published": "2026-06-24T18:32:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52973"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-52973"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492413"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1dcd36420af2da5bd59306dba9caf78e3d248b1d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/974ac49a9a068b0591a59f65c63eb06579a13091"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ee9dce44362b2d8132c32964656ab6dff7dfbc6a"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52973.json"
}
],
"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-9QJC-6FWG-P54R
Vulnerability from github – Published: 2025-04-08 18:34 – Updated: 2025-04-08 18:34Use after free in Windows Shell allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2025-27729"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-08T18:16:00Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Shell allows an unauthorized attacker to execute code locally.",
"id": "GHSA-9qjc-6fwg-p54r",
"modified": "2025-04-08T18:34:52Z",
"published": "2025-04-08T18:34:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27729"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27729"
}
],
"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-9QV5-27HF-7PMQ
Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-18 18:32In the Linux kernel, the following vulnerability has been resolved:
RDMA/irdma: Fix a window for use-after-free
During a destroy CQ an interrupt may cause processing of a CQE after CQ resources are freed by irdma_cq_free_rsrc(). Fix this by moving the call to irdma_cq_free_rsrc() after the irdma_sc_cleanup_ceqes(), which is called under the cq_lock.
{
"affected": [],
"aliases": [
"CVE-2022-50137"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T11:15:43Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Fix a window for use-after-free\n\nDuring a destroy CQ an interrupt may cause processing of a CQE after CQ\nresources are freed by irdma_cq_free_rsrc(). Fix this by moving the call\nto irdma_cq_free_rsrc() after the irdma_sc_cleanup_ceqes(), which is\ncalled under the cq_lock.",
"id": "GHSA-9qv5-27hf-7pmq",
"modified": "2025-11-18T18:32:46Z",
"published": "2025-06-18T12:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50137"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0abf2eef80295923b819ce89ff9edc1fe61be17c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/350ac793a03c8a30a3f2b27fc282cd1c67070763"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8ecef7890b3aea78c8bbb501a4b5b8134367b821"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/92520864ef9f912f38b403d172a0ded020683d55"
}
],
"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-9QVW-46GF-4FV8
Vulnerability from github – Published: 2022-01-06 22:09 – Updated: 2022-01-07 17:41An issue was discovered in the tremor-script crate before 0.11.6 for Rust. A merge operation may result in a use-after-free.
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "tremor-script"
},
"ranges": [
{
"events": [
{
"introduced": "0.7.2"
},
{
"fixed": "0.11.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-45702"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": true,
"github_reviewed_at": "2022-01-06T13:28:58Z",
"nvd_published_at": "2021-12-27T00:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the tremor-script crate before 0.11.6 for Rust. A merge operation may result in a use-after-free.",
"id": "GHSA-9qvw-46gf-4fv8",
"modified": "2022-01-07T17:41:11Z",
"published": "2022-01-06T22:09:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45702"
},
{
"type": "WEB",
"url": "https://github.com/tremor-rs/tremor-runtime/pull/1217"
},
{
"type": "WEB",
"url": "https://github.com/tremor-rs/tremor-runtime/commit/1a2efcdbe68e5e7fd0a05836ac32d2cde78a0b2e"
},
{
"type": "WEB",
"url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tremor-script/RUSTSEC-2021-0111.md"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2021-0111.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"
}
],
"summary": "Use After Free in tremor-script"
}
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.