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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9821 vulnerabilities reference this CWE, most recent first.
GHSA-5VWG-96Q8-MM82
Vulnerability from github – Published: 2025-04-16 15:34 – Updated: 2025-05-06 18:30
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
ublk: make sure ubq->canceling is set when queue is frozen
Now ublk driver depends on ubq->canceling for deciding if the request
can be dispatched via uring_cmd & io_uring_cmd_complete_in_task().
Once ubq->canceling is set, the uring_cmd can be done via ublk_cancel_cmd() and io_uring_cmd_done().
So set ubq->canceling when queue is frozen, this way makes sure that the flag can be observed from ublk_queue_rq() reliably, and avoids use-after-free on uring_cmd.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-22068"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-16T15:16:01Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nublk: make sure ubq-\u003ecanceling is set when queue is frozen\n\nNow ublk driver depends on `ubq-\u003ecanceling` for deciding if the request\ncan be dispatched via uring_cmd \u0026 io_uring_cmd_complete_in_task().\n\nOnce ubq-\u003ecanceling is set, the uring_cmd can be done via ublk_cancel_cmd()\nand io_uring_cmd_done().\n\nSo set ubq-\u003ecanceling when queue is frozen, this way makes sure that the\nflag can be observed from ublk_queue_rq() reliably, and avoids\nuse-after-free on uring_cmd.",
"id": "GHSA-5vwg-96q8-mm82",
"modified": "2025-05-06T18:30:36Z",
"published": "2025-04-16T15:34:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22068"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5491400589e7572c2d2627ed6384302f7672aa1d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7e3497d7dacb5aee69dd9be842b778083cae0e75"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8741d0737921ec1c03cf59aebf4d01400c2b461a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9158359015f0eda00e521e35b7bc7ebce176aebf"
}
],
"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-5VWX-FW27-CQ5J
Vulnerability from github – Published: 2026-06-05 00:31 – Updated: 2026-06-05 03:31
VLAI
Details
Use after free in Ozone in Google Chrome on Linux prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-10899"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T23:16:51Z",
"severity": "HIGH"
},
"details": "Use after free in Ozone in Google Chrome on Linux prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)",
"id": "GHSA-5vwx-fw27-cq5j",
"modified": "2026-06-05T03:31:30Z",
"published": "2026-06-05T00:31:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10899"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/516653777"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5VXR-WR7M-X3P3
Vulnerability from github – Published: 2025-09-16 15:32 – Updated: 2025-11-03 21:34
VLAI
Details
This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.
Severity
7.1 (High)
{
"affected": [],
"aliases": [
"CVE-2025-10527"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-16T13:15:44Z",
"severity": "HIGH"
},
"details": "This vulnerability affects Firefox \u003c 143, Firefox ESR \u003c 140.3, Thunderbird \u003c 143, and Thunderbird \u003c 140.3.",
"id": "GHSA-5vxr-wr7m-x3p3",
"modified": "2025-11-03T21:34:34Z",
"published": "2025-09-16T15:32:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10527"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1984825"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/09/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2025-73"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2025-75"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2025-77"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2025-78"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-5W28-WVM6-XF4J
Vulnerability from github – Published: 2026-02-10 18:30 – Updated: 2026-02-10 18:30
VLAI
Details
Use after free in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
Severity
7.0 (High)
{
"affected": [],
"aliases": [
"CVE-2026-21242"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-10T18:16:25Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-5w28-wvm6-xf4j",
"modified": "2026-02-10T18:30:41Z",
"published": "2026-02-10T18:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21242"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21242"
}
],
"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-5W5G-2R2H-2CJ2
Vulnerability from github – Published: 2022-05-24 17:34 – Updated: 2023-05-24 15:30
VLAI
Details
libuci in OpenWrt before 18.06.9 and 19.x before 19.07.5 may encounter a use after free when using malicious package names. This is related to uci_parse_package in file.c and uci_strdup in util.c.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2020-28951"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-11-19T19:15:00Z",
"severity": "CRITICAL"
},
"details": "libuci in OpenWrt before 18.06.9 and 19.x before 19.07.5 may encounter a use after free when using malicious package names. This is related to uci_parse_package in file.c and uci_strdup in util.c.",
"id": "GHSA-5w5g-2r2h-2cj2",
"modified": "2023-05-24T15:30:26Z",
"published": "2022-05-24T17:34:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28951"
},
{
"type": "WEB",
"url": "https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=5625f5bc36954d644cb80adf8de47854c65d91c3"
},
{
"type": "WEB",
"url": "https://git.openwrt.org/?p=openwrt/openwrt.git;a=log;h=refs/tags/v18.06.9"
},
{
"type": "WEB",
"url": "https://git.openwrt.org/?p=project/uci.git;a=commit;h=a3e650911f5e6f67dcff09974df3775dfd615da6"
}
],
"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-5W7P-6C8W-PJ5Q
Vulnerability from github – Published: 2022-05-13 01:24 – Updated: 2022-05-13 01:24
VLAI
Details
Use-after-free vulnerability in the imgRequestProxy function in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, and SeaMonkey before 2.24 allows remote attackers to execute arbitrary code via vectors involving unspecified Content-Type values for image data.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2014-1486"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-02-06T05:44:00Z",
"severity": "CRITICAL"
},
"details": "Use-after-free vulnerability in the imgRequestProxy function in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, and SeaMonkey before 2.24 allows remote attackers to execute arbitrary code via vectors involving unspecified Content-Type values for image data.",
"id": "GHSA-5w7p-6c8w-pj5q",
"modified": "2022-05-13T01:24:14Z",
"published": "2022-05-13T01:24:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-1486"
},
{
"type": "WEB",
"url": "https://8pecxstudios.com/?page_id=44080"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=942164"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/90890"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201504-01"
},
{
"type": "WEB",
"url": "http://download.novell.com/Download?buildid=VYQsgaFpQ2k"
},
{
"type": "WEB",
"url": "http://download.novell.com/Download?buildid=Y2fux-JW1Qc"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127966.html"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-February/129218.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00004.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00005.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00010.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00017.html"
},
{
"type": "WEB",
"url": "http://osvdb.org/102872"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2014-0132.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2014-0133.html"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/56706"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/56761"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/56763"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/56767"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/56787"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/56858"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/56888"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/56922"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2014/dsa-2858"
},
{
"type": "WEB",
"url": "http://www.mozilla.org/security/announce/2014/mfsa2014-08.html"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/65334"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1029717"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1029720"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1029721"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2102-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2102-2"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2119-1"
}
],
"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-5W85-M7VR-R7MX
Vulnerability from github – Published: 2026-05-14 21:30 – Updated: 2026-05-14 21:30
VLAI
Details
Use after free in UI in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
Severity
9.6 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-8511"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-14T20:17:11Z",
"severity": "CRITICAL"
},
"details": "Use after free in UI in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)",
"id": "GHSA-5w85-m7vr-r7mx",
"modified": "2026-05-14T21:30:44Z",
"published": "2026-05-14T21:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8511"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/495108488"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5W86-J94C-54Q5
Vulnerability from github – Published: 2023-08-17 15:30 – Updated: 2024-04-04 07:01
VLAI
Details
A use-after-free flaw was found in btrfs_get_dev_args_from_path in fs/btrfs/volumes.c in btrfs file-system in the Linux Kernel. This flaw allows a local attacker with special privileges to cause a system crash or leak internal kernel information
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-4394"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-17T13:15:11Z",
"severity": "MODERATE"
},
"details": "A use-after-free flaw was found in btrfs_get_dev_args_from_path in fs/btrfs/volumes.c in btrfs file-system in the Linux Kernel. This flaw allows a local attacker with special privileges to cause a system crash or leak internal kernel information",
"id": "GHSA-5w86-j94c-54q5",
"modified": "2024-04-04T07:01:41Z",
"published": "2023-08-17T15:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4394"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-4394"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2219263"
},
{
"type": "WEB",
"url": "https://patchwork.kernel.org/project/linux-btrfs/patch/20220815151606.3479183-1-r33s3n6@gmail.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5W8M-6WWQ-MM8M
Vulnerability from github – Published: 2024-10-21 15:32 – Updated: 2025-11-04 00:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()
The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees "nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-49852"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T13:15:05Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()\n\nThe kref_put() function will call nport-\u003erelease if the refcount drops to\nzero. The nport-\u003erelease release function is _efc_nport_free() which frees\n\"nport\". But then we dereference \"nport\" on the next line which is a use\nafter free. Re-order these lines to avoid the use after free.",
"id": "GHSA-5w8m-6wwq-mm8m",
"modified": "2025-11-04T00:31:39Z",
"published": "2024-10-21T15:32:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49852"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9ae"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eec"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ff"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"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-5WCQ-2M8R-Q254
Vulnerability from github – Published: 2022-09-03 00:00 – Updated: 2022-09-08 00:00
VLAI
Details
Use after free in the synx driver issue while performing other functions during multiple invocation of synx release calls in Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2021-35133"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-02T12:15:00Z",
"severity": "MODERATE"
},
"details": "Use after free in the synx driver issue while performing other functions during multiple invocation of synx release calls in Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile",
"id": "GHSA-5wcq-2m8r-q254",
"modified": "2022-09-08T00:00:28Z",
"published": "2022-09-03T00:00:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-35133"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/july-2022-bulletin"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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.