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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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-6JGC-QG3G-G48G
Vulnerability from github – Published: 2022-08-16 00:00 – Updated: 2022-08-17 00:00
VLAI
Details
Use After Free in GitHub repository vim/vim prior to 9.0.0212.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-2817"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-15T23:15:00Z",
"severity": "HIGH"
},
"details": "Use After Free in GitHub repository vim/vim prior to 9.0.0212.",
"id": "GHSA-6jgc-qg3g-g48g",
"modified": "2022-08-17T00:00:23Z",
"published": "2022-08-16T00:00:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2817"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/249e1b903a9c0460d618f6dcc59aeb8c03b24b20"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/a7b7d242-3d88-4bde-a681-6c986aff886f"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHFAR6OY6G77M6GXCJT75A4KITLNR6GO"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-16"
}
],
"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-6JGW-RGMM-7CV6
Vulnerability from github – Published: 2024-10-15 15:30 – Updated: 2024-10-15 17:04
VLAI
Summary
PyO3 has a risk of use-after-free in `borrowed` reads from Python weak references
Details
The family of functions to read "borrowed" values from Python weak references were fundamentally unsound, because the weak reference does itself not have ownership of the value. At any point the last strong reference could be cleared and the borrowed value would become dangling.
In PyO3 0.22.4 these functions have all been deprecated and patched to leak a strong reference as a mitigation. PyO3 0.23 will remove these functions entirely.
Severity
5.3 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "pyo3"
},
"ranges": [
{
"events": [
{
"introduced": "0.22.0"
},
{
"fixed": "0.22.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-9979"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": true,
"github_reviewed_at": "2024-10-15T17:04:56Z",
"nvd_published_at": "2024-10-15T14:15:05Z",
"severity": "MODERATE"
},
"details": "The family of functions to read \"borrowed\" values from Python weak references were fundamentally unsound, because the weak reference does itself not have ownership of the value. At any point the last strong reference could be cleared and the borrowed value would become dangling.\n\nIn PyO3 0.22.4 these functions have all been deprecated and patched to leak a strong reference as a mitigation. PyO3 0.23 will remove these functions entirely.",
"id": "GHSA-6jgw-rgmm-7cv6",
"modified": "2024-10-15T17:04:56Z",
"published": "2024-10-15T15:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-9979"
},
{
"type": "WEB",
"url": "https://github.com/PyO3/pyo3/pull/4590"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2024-9979"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2318646"
},
{
"type": "WEB",
"url": "https://crates.io/crates/pyo3"
},
{
"type": "PACKAGE",
"url": "https://github.com/PyO3/pyo3"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2024-0378.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": " PyO3 has a risk of use-after-free in `borrowed` reads from Python weak references"
}
GHSA-6JH3-XX76-VF4C
Vulnerability from github – Published: 2024-05-03 03:31 – Updated: 2024-05-03 03:31
VLAI
Details
PDF-XChange Editor JPG File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange 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 parsing of JPG 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-21691.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-42075"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:15:43Z",
"severity": "HIGH"
},
"details": "PDF-XChange Editor JPG File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange 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 parsing of JPG 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-21691.",
"id": "GHSA-6jh3-xx76-vf4c",
"modified": "2024-05-03T03:31:01Z",
"published": "2024-05-03T03:31:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42075"
},
{
"type": "WEB",
"url": "https://www.tracker-software.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-1378"
}
],
"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-6JH6-JWRQ-3F9R
Vulnerability from github – Published: 2024-08-13 18:31 – Updated: 2024-08-13 18:31
VLAI
Details
Windows Network Virtualization Remote Code Execution Vulnerability
Severity
9.1 (Critical)
{
"affected": [],
"aliases": [
"CVE-2024-38159"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-13T18:15:22Z",
"severity": "CRITICAL"
},
"details": "Windows Network Virtualization Remote Code Execution Vulnerability",
"id": "GHSA-6jh6-jwrq-3f9r",
"modified": "2024-08-13T18:31:16Z",
"published": "2024-08-13T18:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38159"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38159"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-6JHG-HM22-WM97
Vulnerability from github – Published: 2026-03-10 18:31 – Updated: 2026-03-10 18:31
VLAI
Details
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-25189"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-10T18:18:36Z",
"severity": "HIGH"
},
"details": "Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-6jhg-hm22-wm97",
"modified": "2026-03-10T18:31:21Z",
"published": "2026-03-10T18:31:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25189"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25189"
}
],
"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-6JJ2-WCWF-XW53
Vulnerability from github – Published: 2026-06-05 00:31 – Updated: 2026-06-05 03:31
VLAI
Details
Use after free in Actor in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-10954"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T23:16:58Z",
"severity": "HIGH"
},
"details": "Use after free in Actor in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-6jj2-wcwf-xw53",
"modified": "2026-06-05T03:31:32Z",
"published": "2026-06-05T00:31:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10954"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/506150628"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-6JJ9-4HH8-6XPV
Vulnerability from github – Published: 2023-11-29 12:30 – Updated: 2024-08-01 15:31
VLAI
Details
Use after free in Mojo in Google Chrome prior to 119.0.6045.199 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-6347"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-29T12:15:07Z",
"severity": "HIGH"
},
"details": "Use after free in Mojo in Google Chrome prior to 119.0.6045.199 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-6jj9-4hh8-6xpv",
"modified": "2024-08-01T15:31:25Z",
"published": "2023-11-29T12:30:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6347"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2023/11/stable-channel-update-for-desktop_28.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1494461"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T7ABNYMOI4ZHVCSPCNP7HQTOLGF53A2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C7XQNYZZA3X2LBJF57ZHKXWOMJKNLZYR"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJROPNKWW65R34J4IYGTJ7A3OBPUL4IQ"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-34"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5569"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-6JMV-JJW5-5RWP
Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-03 09:33
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt
hci_conn lookup and field access must be covered by hdev lock in hci_le_remote_conn_param_req_evt, otherwise it's possible it is freed concurrently.
Extend the hci_dev_lock critical section to cover all conn usage.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-43018"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-01T15:16:45Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt\n\nhci_conn lookup and field access must be covered by hdev lock in\nhci_le_remote_conn_param_req_evt, otherwise it\u0027s possible it is freed\nconcurrently.\n\nExtend the hci_dev_lock critical section to cover all conn usage.",
"id": "GHSA-6jmv-jjw5-5rwp",
"modified": "2026-05-03T09:33:10Z",
"published": "2026-05-01T15:30:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43018"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-6JPJ-465M-3PCR
Vulnerability from github – Published: 2022-05-14 01:25 – Updated: 2025-04-20 03:35
VLAI
Details
An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves the "Kernel" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (use-after-free) via a crafted app.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2017-2472"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-04-02T01:59:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves the \"Kernel\" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (use-after-free) via a crafted app.",
"id": "GHSA-6jpj-465m-3pcr",
"modified": "2025-04-20T03:35:14Z",
"published": "2022-05-14T01:25:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2472"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT207601"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT207602"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT207615"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT207617"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/41791"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/97137"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1038138"
}
],
"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-6JQM-M98Q-JJQ9
Vulnerability from github – Published: 2022-05-24 19:19 – Updated: 2022-05-24 19:19
VLAI
Details
Use after free in Profiles in Google Chrome prior to 95.0.4638.54 allowed a remote attacker who convinced a user to engage in specific gestures to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2021-37988"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-11-02T22:15:00Z",
"severity": "HIGH"
},
"details": "Use after free in Profiles in Google Chrome prior to 95.0.4638.54 allowed a remote attacker who convinced a user to engage in specific gestures to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-6jqm-m98q-jjq9",
"modified": "2022-05-24T19:19:41Z",
"published": "2022-05-24T19:19:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37988"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_19.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1228248"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5046"
}
],
"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.