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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9811 vulnerabilities reference this CWE, most recent first.
GHSA-X5Q7-8Q79-R7MH
Vulnerability from github – Published: 2026-07-01 00:34 – Updated: 2026-07-01 18:31Use after free in Views in Google Chrome prior to 150.0.7871.47 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: High)
{
"affected": [],
"aliases": [
"CVE-2026-13814"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-30T23:16:56Z",
"severity": "HIGH"
},
"details": "Use after free in Views in Google Chrome prior to 150.0.7871.47 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: High)",
"id": "GHSA-x5q7-8q79-r7mh",
"modified": "2026-07-01T18:31:28Z",
"published": "2026-07-01T00:34:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13814"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/511712766"
}
],
"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-X5V2-JX9X-FJ53
Vulnerability from github – Published: 2022-05-24 19:12 – Updated: 2022-05-24 19:12Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by an 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-2021-28553"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-02T17:15:00Z",
"severity": "HIGH"
},
"details": "Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by an 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-x5v2-jx9x-fj53",
"modified": "2022-05-24T19:12:53Z",
"published": "2022-05-24T19:12:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28553"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb21-29.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-X5VQ-PV82-HP56
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-56643"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:18:30Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-x5vq-pv82-hp56",
"modified": "2026-07-14T18:32:38Z",
"published": "2026-07-14T18:32:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56643"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56643"
}
],
"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-X5XC-9JVW-6V9F
Vulnerability from github – Published: 2022-05-13 01:14 – Updated: 2022-05-13 01:14Use-after-free vulnerability in the sofree function in slirp/socket.c in QEMU (aka Quick Emulator) allows attackers to cause a denial of service (QEMU instance crash) by leveraging failure to properly clear ifq_so from pending packets.
{
"affected": [],
"aliases": [
"CVE-2017-13711"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-09-01T13:29:00Z",
"severity": "HIGH"
},
"details": "Use-after-free vulnerability in the sofree function in slirp/socket.c in QEMU (aka Quick Emulator) allows attackers to cause a denial of service (QEMU instance crash) by leveraging failure to properly clear ifq_so from pending packets.",
"id": "GHSA-x5xc-9jvw-6v9f",
"modified": "2022-05-13T01:14:01Z",
"published": "2022-05-13T01:14:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-13711"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:0816"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1104"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1113"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1486400"
},
{
"type": "WEB",
"url": "https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg05201.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2017/dsa-3991"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2017/08/29/6"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/100534"
}
],
"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-X5XF-RWJM-436W
Vulnerability from github – Published: 2026-06-12 03:31 – Updated: 2026-06-12 03:31A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.
{
"affected": [],
"aliases": [
"CVE-2026-11933"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-12T02:16:38Z",
"severity": "HIGH"
},
"details": "A use-after-free vulnerability exists in MongoDB Server\u0027s server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.",
"id": "GHSA-x5xf-rwjm-436w",
"modified": "2026-06-12T03:31:28Z",
"published": "2026-06-12T03:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11933"
},
{
"type": "WEB",
"url": "https://jira.mongodb.org/browse/SERVER-128125"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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-X62R-3H2P-RHHP
Vulnerability from github – Published: 2024-05-08 00:31 – Updated: 2024-05-08 00:31Foxit PDF Editor Underline Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. 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 Annotation objects. 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-14357.
{
"affected": [],
"aliases": [
"CVE-2021-34956"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-07T23:15:09Z",
"severity": "HIGH"
},
"details": "Foxit PDF Editor Underline Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. 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 Annotation objects. 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-14357.",
"id": "GHSA-x62r-3h2p-rhhp",
"modified": "2024-05-08T00:31:13Z",
"published": "2024-05-08T00:31:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34956"
},
{
"type": "WEB",
"url": "https://www.foxit.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1187"
}
],
"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-X63C-5QG7-5JGC
Vulnerability from github – Published: 2025-05-10 15:30 – Updated: 2025-11-12 21:31In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition
In btsdio_probe, the data->work is bound with btsdio_work. It will be started in btsdio_send_frame.
If the btsdio_remove runs with a unfinished work, there may be a race condition that hdev is freed but used in btsdio_work. Fix it by canceling the work before do cleanup in btsdio_remove.
{
"affected": [],
"aliases": [
"CVE-2023-53145"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-10T15:15:58Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition\n\nIn btsdio_probe, the data-\u003ework is bound with btsdio_work. It will be\nstarted in btsdio_send_frame.\n\nIf the btsdio_remove runs with a unfinished work, there may be a race\ncondition that hdev is freed but used in btsdio_work. Fix it by\ncanceling the work before do cleanup in btsdio_remove.",
"id": "GHSA-x63c-5qg7-5jgc",
"modified": "2025-11-12T21:31:04Z",
"published": "2025-05-10T15:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53145"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/179c65828593aff1f444e15debd40a477cb23cf4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3efcbf25e5ab4d4ad1b7e6ba0869ff85540e3f6e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6c3653627397a0d6eab19b20a59423e118985a6b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/73f7b171b7c09139eb3c6a5677c200dc1be5f318"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/746b363bef41cc159c051c47f9e30800bc6b520d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a5c2a467e9e789ae0891de55b766daac52e3b7b3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a6650d27ab2c12a8ee750f396edb5ac8b4558b2e"
}
],
"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-X63H-2CWQ-PHXF
Vulnerability from github – Published: 2022-10-22 12:00 – Updated: 2022-10-25 19:00A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function nilfs_new_inode of the file fs/nilfs2/inode.c of the component BPF. The manipulation leads to use after free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211992.
{
"affected": [],
"aliases": [
"CVE-2022-3649"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-21T20:15:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function nilfs_new_inode of the file fs/nilfs2/inode.c of the component BPF. The manipulation leads to use after free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211992.",
"id": "GHSA-x63h-2cwq-phxf",
"modified": "2022-10-25T19:00:35Z",
"published": "2022-10-22T12:00:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3649"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d325dc6eb763c10f591c239550b8c7e5466a5d09"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230214-0009"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.211992"
}
],
"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-X63R-P5HM-G3JM
Vulnerability from github – Published: 2026-06-09 21:32 – Updated: 2026-06-09 21:32Acrobat Reader versions 24.001.30365, 26.001.21651 and earlier are affected by a Use After Free vulnerability that could result in 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-2026-47916"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T21:17:21Z",
"severity": "HIGH"
},
"details": "Acrobat Reader versions 24.001.30365, 26.001.21651 and earlier are affected by a Use After Free vulnerability that could result in 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-x63r-p5hm-g3jm",
"modified": "2026-06-09T21:32:38Z",
"published": "2026-06-09T21:32:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47916"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb26-63.html"
}
],
"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-X653-6QFV-JVJX
Vulnerability from github – Published: 2022-05-13 01:34 – Updated: 2022-05-13 01:34This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.1.0.5096. 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 parsing of PDF documents. By manipulating a document's elements, an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-6233.
{
"affected": [],
"aliases": [
"CVE-2018-14293"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-31T20:29:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.1.0.5096. 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 parsing of PDF documents. By manipulating a document\u0027s elements, an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-6233.",
"id": "GHSA-x653-6qfv-jvjx",
"modified": "2022-05-13T01:34:34Z",
"published": "2022-05-13T01:34:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14293"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
},
{
"type": "WEB",
"url": "https://zerodayinitiative.com/advisories/ZDI-18-753"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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.