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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9903 vulnerabilities reference this CWE, most recent first.
GHSA-MWX2-8CMG-6VMJ
Vulnerability from github – Published: 2024-02-04 18:30 – Updated: 2024-03-05 00:31Artifex Ghostscript before 9.53.0 has an out-of-bounds write and use-after-free in devices/vector/gdevtxtw.c (for txtwrite) because a single character code in a PDF document can map to more than one Unicode code point (e.g., for a ligature).
{
"affected": [],
"aliases": [
"CVE-2020-36773"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-04T18:16:00Z",
"severity": "CRITICAL"
},
"details": "Artifex Ghostscript before 9.53.0 has an out-of-bounds write and use-after-free in devices/vector/gdevtxtw.c (for txtwrite) because a single character code in a PDF document can map to more than one Unicode code point (e.g., for a ligature).",
"id": "GHSA-mwx2-8cmg-6vmj",
"modified": "2024-03-05T00:31:14Z",
"published": "2024-02-04T18:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36773"
},
{
"type": "WEB",
"url": "https://bugs.ghostscript.com/show_bug.cgi?id=702229"
},
{
"type": "WEB",
"url": "https://bugzilla.opensuse.org/show_bug.cgi?id=1177922"
},
{
"type": "WEB",
"url": "https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874"
},
{
"type": "WEB",
"url": "https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=8c7bd787defa071c96289b7da9397f673fddb874"
},
{
"type": "WEB",
"url": "https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530"
}
],
"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-MWX8-FRG3-85QQ
Vulnerability from github – Published: 2026-01-13 18:31 – Updated: 2026-01-13 18:31Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2026-20953"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-13T18:16:23Z",
"severity": "HIGH"
},
"details": "Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.",
"id": "GHSA-mwx8-frg3-85qq",
"modified": "2026-01-13T18:31:11Z",
"published": "2026-01-13T18:31:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20953"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20953"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MX24-HWQM-5VF7
Vulnerability from github – Published: 2025-02-06 15:32 – Updated: 2025-02-06 15:32Use-After-Free (UAF) vulnerability in the display module Impact: Successful exploitation of this vulnerability may cause features to perform abnormally.
{
"affected": [],
"aliases": [
"CVE-2024-57959"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-06T13:15:40Z",
"severity": "MODERATE"
},
"details": "Use-After-Free (UAF) vulnerability in the display module\nImpact: Successful exploitation of this vulnerability may cause features to perform abnormally.",
"id": "GHSA-mx24-hwqm-5vf7",
"modified": "2025-02-06T15:32:52Z",
"published": "2025-02-06T15:32:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57959"
},
{
"type": "WEB",
"url": "https://consumer.huawei.com/en/support/bulletin/2025/2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MX25-2X8W-4WXP
Vulnerability from github – Published: 2022-05-14 01:59 – Updated: 2022-05-14 01:59Foxit PhantomPDF and Reader before 9.3 allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) because properties of Annotation objects are mishandled. This relates to one of five distinct types of Annotation objects.
{
"affected": [],
"aliases": [
"CVE-2018-17608"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-09-28T09:29:00Z",
"severity": "CRITICAL"
},
"details": "Foxit PhantomPDF and Reader before 9.3 allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) because properties of Annotation objects are mishandled. This relates to one of five distinct types of Annotation objects.",
"id": "GHSA-mx25-2x8w-4wxp",
"modified": "2022-05-14T01:59:37Z",
"published": "2022-05-14T01:59:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17608"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MX6F-W8RX-J88J
Vulnerability from github – Published: 2025-09-09 18:31 – Updated: 2025-09-09 18:31Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2025-54896"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-09T17:16:00Z",
"severity": "HIGH"
},
"details": "Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.",
"id": "GHSA-mx6f-w8rx-j88j",
"modified": "2025-09-09T18:31:22Z",
"published": "2025-09-09T18:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54896"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54896"
}
],
"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-MX94-PXRM-3F6H
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 9.0.1.1049. 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 the newDoc function. 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 under the context of the current process. Was ZDI-CAN-5773.
{
"affected": [],
"aliases": [
"CVE-2018-14284"
],
"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 9.0.1.1049. 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 the newDoc function. 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 under the context of the current process. Was ZDI-CAN-5773.",
"id": "GHSA-mx94-pxrm-3f6h",
"modified": "2022-05-13T01:34:37Z",
"published": "2022-05-13T01:34:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14284"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
},
{
"type": "WEB",
"url": "https://zerodayinitiative.com/advisories/ZDI-18-744"
}
],
"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"
}
]
}
GHSA-MX9F-R289-Q79H
Vulnerability from github – Published: 2025-10-14 18:30 – Updated: 2025-10-14 18:30Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2025-58736"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T17:15:55Z",
"severity": "HIGH"
},
"details": "Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.",
"id": "GHSA-mx9f-r289-q79h",
"modified": "2025-10-14T18:30:33Z",
"published": "2025-10-14T18:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58736"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-58736"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MXHV-C85C-9W63
Vulnerability from github – Published: 2024-05-03 03:31 – Updated: 2024-05-03 03:31Kofax Power PDF XPS File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kofax Power PDF. 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 XPS files. 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-21975.
{
"affected": [],
"aliases": [
"CVE-2023-51565"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:16:15Z",
"severity": "HIGH"
},
"details": "Kofax Power PDF XPS File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kofax Power PDF. 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 XPS files. 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-21975.",
"id": "GHSA-mxhv-c85c-9w63",
"modified": "2024-05-03T03:31:07Z",
"published": "2024-05-03T03:31:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-51565"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-003"
}
],
"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-MXMG-QHGP-G6JF
Vulnerability from github – Published: 2024-11-22 21:32 – Updated: 2024-11-22 21:32IrfanView DXF File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. 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 DXF files. 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-24885.
{
"affected": [],
"aliases": [
"CVE-2024-11570"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-22T21:15:16Z",
"severity": "HIGH"
},
"details": "IrfanView DXF File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. 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 parsing of DXF files. 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-24885.",
"id": "GHSA-mxmg-qhgp-g6jf",
"modified": "2024-11-22T21:32:18Z",
"published": "2024-11-22T21:32:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-11570"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1571"
}
],
"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-MXP9-JV89-XF8H
Vulnerability from github – Published: 2024-10-08 18:33 – Updated: 2024-10-08 18:33Microsoft Speech Application Programming Interface (SAPI) Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-43574"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-08T18:15:25Z",
"severity": "HIGH"
},
"details": "Microsoft Speech Application Programming Interface (SAPI) Remote Code Execution Vulnerability",
"id": "GHSA-mxp9-jv89-xf8h",
"modified": "2024-10-08T18:33:17Z",
"published": "2024-10-08T18:33:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43574"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43574"
}
],
"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"
}
]
}
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.