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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
11157 vulnerabilities reference this CWE, most recent first.
GHSA-P4M9-R3RR-CX92
Vulnerability from github – Published: 2023-07-24 15:30 – Updated: 2024-02-02 15:30
VLAI
Details
A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact a kernel information leak issue.
Severity
6.4 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-3863"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-24T15:15:09Z",
"severity": "MODERATE"
},
"details": "A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact a kernel information leak issue.",
"id": "GHSA-p4m9-r3rr-cx92",
"modified": "2024-02-02T15:30:28Z",
"published": "2023-07-24T15:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3863"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-3863"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2225126"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20240202-0002"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5480"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5492"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P4P7-PC96-M757
Vulnerability from github – Published: 2026-06-05 00:31 – Updated: 2026-06-05 18:31
VLAI
Details
Use after free in Dawn in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-11154"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T23:17:21Z",
"severity": "HIGH"
},
"details": "Use after free in Dawn in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-p4p7-pc96-m757",
"modified": "2026-06-05T18:31:36Z",
"published": "2026-06-05T00:31:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11154"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/501789156"
}
],
"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-P4R9-85JF-W9FM
Vulnerability from github – Published: 2023-10-10 18:31 – Updated: 2024-04-04 08:30
VLAI
Details
A use after free vulnerability [CWE-416] in FortiOS version 7.2.0 through 7.2.4 and version 7.0.0 through 7.0.10 and FortiProxy version 7.2.0 through 7.2.2 and version 7.0.0 through 7.0.8 may allow an unauthenticated remote attacker to crash the WAD process via multiple crafted packets reaching proxy policies or firewall policies with proxy mode alongside SSL deep packet inspection.
Severity
5.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-41675"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-10-10T17:15:12Z",
"severity": "MODERATE"
},
"details": "A use after free vulnerability [CWE-416] in FortiOS version 7.2.0 through 7.2.4 and version 7.0.0 through 7.0.10 and FortiProxy version 7.2.0 through 7.2.2 and version 7.0.0 through 7.0.8 may allow an unauthenticated remote attacker to crash the WAD process via multiple crafted packets reaching proxy policies or firewall policies with proxy mode alongside SSL deep packet inspection.",
"id": "GHSA-p4r9-85jf-w9fm",
"modified": "2024-04-04T08:30:22Z",
"published": "2023-10-10T18:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41675"
},
{
"type": "WEB",
"url": "https://fortiguard.com/psirt/FG-IR-23-184"
}
],
"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:L",
"type": "CVSS_V3"
}
]
}
GHSA-P4RW-2PCX-8FC2
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33
VLAI
Details
Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
Severity
7.0 (High)
{
"affected": [],
"aliases": [
"CVE-2026-83940"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:21:04Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-p4rw-2pcx-8fc2",
"modified": "2026-09-08T18:33:35Z",
"published": "2026-09-08T18:33:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-83940"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83940"
}
],
"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-P4VJ-J2W3-773M
Vulnerability from github – Published: 2024-10-07 15:31 – Updated: 2024-10-07 15:31
VLAI
Details
Transient DOS when transmission of management frame sent by host is not successful and error status is received in the host.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2024-33069"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-07T13:15:13Z",
"severity": "HIGH"
},
"details": "Transient DOS when transmission of management frame sent by host is not successful and error status is received in the host.",
"id": "GHSA-p4vj-j2w3-773m",
"modified": "2024-10-07T15:31:39Z",
"published": "2024-10-07T15:31:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33069"
},
{
"type": "WEB",
"url": "https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2024-bulletin.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"
}
]
}
GHSA-P4XR-65M7-FF65
Vulnerability from github – Published: 2022-08-29 20:06 – Updated: 2022-09-07 00:01
VLAI
Details
A use-after-free vulnerabilitity was discovered in drivers/net/hamradio/6pack.c of linux that allows an attacker to crash linux kernel by simulating ax25 device using 6pack driver from user space.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-1198"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-29T15:15:00Z",
"severity": "MODERATE"
},
"details": "A use-after-free vulnerabilitity was discovered in drivers/net/hamradio/6pack.c of linux that allows an attacker to crash linux kernel by simulating ax25 device using 6pack driver from user space.",
"id": "GHSA-p4xr-65m7-ff65",
"modified": "2022-09-07T00:01:53Z",
"published": "2022-08-29T20:06:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1198"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/efe4186e6a1b54bf38b9e05450d43b0da1fd7739"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2022-1198"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2070689"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2022/04/02/3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P4XX-95P7-3998
Vulnerability from github – Published: 2022-05-13 01:09 – Updated: 2022-05-13 01:09
VLAI
Details
An Arbitrary Free (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. Crafted input can overwrite a structure, leading to a function call with an invalid parameter, and a subsequent free of important data such as a function pointer or list pointer. This is fixed in 6.9d.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2018-6641"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-02-28T05:29:00Z",
"severity": "CRITICAL"
},
"details": "An Arbitrary Free (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. Crafted input can overwrite a structure, leading to a function call with an invalid parameter, and a subsequent free of important data such as a function pointer or list pointer. This is fixed in 6.9d.",
"id": "GHSA-p4xx-95p7-3998",
"modified": "2022-05-13T01:09:56Z",
"published": "2022-05-13T01:09:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6641"
},
{
"type": "WEB",
"url": "https://drive.google.com/open?id=1qrHKzDA1daHh0mM2T8FRybL8we-mHRW9"
},
{
"type": "WEB",
"url": "http://www.dessci.com/en/dl"
}
],
"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-P52H-4MJQ-M66R
Vulnerability from github – Published: 2025-08-12 18:31 – Updated: 2025-08-12 18:31
VLAI
Details
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-53151"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-12T18:15:39Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-p52h-4mjq-m66r",
"modified": "2025-08-12T18:31:31Z",
"published": "2025-08-12T18:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53151"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53151"
}
],
"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-P532-PQR4-XW4G
Vulnerability from github – Published: 2022-05-24 17:35 – Updated: 2022-05-24 17:35
VLAI
Details
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.2 and iPadOS 14.2. Processing maliciously crafted web content may lead to arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2020-27926"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-12-08T21:15:00Z",
"severity": "HIGH"
},
"details": "A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.2 and iPadOS 14.2. Processing maliciously crafted web content may lead to arbitrary code execution.",
"id": "GHSA-p532-pqr4-xw4g",
"modified": "2022-05-24T17:35:43Z",
"published": "2022-05-24T17:35:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27926"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT211929"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT212011"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2020/Dec/26"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-P563-P765-777J
Vulnerability from github – Published: 2022-05-24 19:06 – Updated: 2022-05-24 19:06
VLAI
Details
Use after free in Sharing in Google Chrome prior to 91.0.4472.114 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page and user gesture.
{
"affected": [],
"aliases": [
"CVE-2021-30555"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-07-02T19:15:00Z",
"severity": "HIGH"
},
"details": "Use after free in Sharing in Google Chrome prior to 91.0.4472.114 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page and user gesture.",
"id": "GHSA-p563-p765-777j",
"modified": "2022-05-24T19:06:50Z",
"published": "2022-05-24T19:06:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30555"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1215029"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202107-06"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.