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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
11153 vulnerabilities reference this CWE, most recent first.
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"
}
]
}
GHSA-5WGW-R8HG-6F94
Vulnerability from github – Published: 2026-09-30 18:33 – Updated: 2026-09-30 18:33
VLAI
Details
NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer where a user could cause a use-after-free. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-47551"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-30T16:17:23Z",
"severity": "HIGH"
},
"details": "NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer where a user could cause a use-after-free. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.",
"id": "GHSA-5wgw-r8hg-6f94",
"modified": "2026-09-30T18:33:42Z",
"published": "2026-09-30T18:33:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47551"
},
{
"type": "WEB",
"url": "https://github.com/NVIDIA/product-security/tree/main/2026/5861"
},
{
"type": "WEB",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-47551"
}
],
"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-5WHJ-QQ2V-9WMC
Vulnerability from github – Published: 2026-05-29 00:38 – Updated: 2026-05-29 18:31
VLAI
Details
Use after free in XR in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
Severity
8.3 (High)
{
"affected": [],
"aliases": [
"CVE-2026-9890"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-28T23:16:46Z",
"severity": "HIGH"
},
"details": "Use after free in XR in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)",
"id": "GHSA-5whj-qq2v-9wmc",
"modified": "2026-05-29T18:31:23Z",
"published": "2026-05-29T00:38:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9890"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/513135985"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5WHM-5CF2-VVC2
Vulnerability from github – Published: 2022-05-24 17:41 – Updated: 2022-05-24 17:41
VLAI
Details
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2021-21021"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-02-11T20:15:00Z",
"severity": "HIGH"
},
"details": "Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-5whm-5cf2-vvc2",
"modified": "2022-05-24T17:41:56Z",
"published": "2022-05-24T17:41:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21021"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb21-09.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-5WM3-RHR5-RWMM
Vulnerability from github – Published: 2022-08-26 00:03 – Updated: 2022-09-01 00:00
VLAI
Details
A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture. When a specially crafted binarygets analysed by rizin, it causes rizin to crash by freeing an uninitialized (and potentially user controlled, depending on the build) memory address.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2021-4022"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-25T18:15:00Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in rizin. The bug involves an ELF64 binary for the HPPA architecture. When a specially crafted binarygets analysed by rizin, it causes rizin to crash by freeing an uninitialized (and potentially user controlled, depending on the build) memory address.",
"id": "GHSA-5wm3-rhr5-rwmm",
"modified": "2022-09-01T00:00:22Z",
"published": "2022-08-26T00:03:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4022"
},
{
"type": "WEB",
"url": "https://github.com/rizinorg/rizin/issues/2015"
}
],
"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"
}
]
}
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.