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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9811 vulnerabilities reference this CWE, most recent first.
GHSA-7PP2-QG9P-J76H
Vulnerability from github – Published: 2023-11-16 12:30 – Updated: 2024-02-23 21:30
VLAI
Details
Adobe Acrobat Reader versions 23.006.20360 (and earlier) and 20.005.30524 (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.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-44372"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-16T10:15:18Z",
"severity": "HIGH"
},
"details": "Adobe Acrobat Reader versions 23.006.20360 (and earlier) and 20.005.30524 (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-7pp2-qg9p-j76h",
"modified": "2024-02-23T21:30:47Z",
"published": "2023-11-16T12:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-44372"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb23-54.htm"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb23-54.html"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1842"
}
],
"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-7PPH-HP2F-GXFG
Vulnerability from github – Published: 2022-05-24 19:17 – Updated: 2025-10-22 00:32
VLAI
Details
Use after free in Indexed DB API in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
Severity
9.6 (Critical)
{
"affected": [],
"aliases": [
"CVE-2021-30633"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-10-08T21:15:00Z",
"severity": "CRITICAL"
},
"details": "Use after free in Indexed DB API in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.",
"id": "GHSA-7pph-hp2f-gxfg",
"modified": "2025-10-22T00:32:25Z",
"published": "2022-05-24T19:17:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30633"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1247766"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30633"
}
],
"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-7PR8-56FJ-X4Q8
Vulnerability from github – Published: 2022-11-02 12:00 – Updated: 2022-11-02 19:00
VLAI
Details
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 16.1, iOS 16.1 and iPadOS 16, macOS Ventura 13. Processing maliciously crafted web content may lead to arbitrary code execution.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-32922"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-11-01T20:15:00Z",
"severity": "HIGH"
},
"details": "A use after free issue was addressed with improved memory management. This issue is fixed in Safari 16.1, iOS 16.1 and iPadOS 16, macOS Ventura 13. Processing maliciously crafted web content may lead to arbitrary code execution.",
"id": "GHSA-7pr8-56fj-x4q8",
"modified": "2022-11-02T19:00:25Z",
"published": "2022-11-02T12:00:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32922"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213488"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213489"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213495"
}
],
"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-7PRR-XCC8-8WPV
Vulnerability from github – Published: 2023-05-22 00:30 – Updated: 2024-04-04 04:15
VLAI
Details
An issue was discovered in netfilter in the Linux kernel before 5.10. There can be a use-after-free in the packet processing context, because the per-CPU sequence count is mishandled during concurrent iptables rules replacement. This could be exploited with the CAP_NET_ADMIN capability in an unprivileged namespace. NOTE: cc00bca was reverted in 5.12.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2020-36694"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-05-21T23:15:08Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in netfilter in the Linux kernel before 5.10. There can be a use-after-free in the packet processing context, because the per-CPU sequence count is mishandled during concurrent iptables rules replacement. This could be exploited with the CAP_NET_ADMIN capability in an unprivileged namespace. NOTE: cc00bca was reverted in 5.12.",
"id": "GHSA-7prr-xcc8-8wpv",
"modified": "2024-04-04T04:15:51Z",
"published": "2023-05-22T00:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36694"
},
{
"type": "WEB",
"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10"
},
{
"type": "WEB",
"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc00bcaa589914096edef7fb87ca5cee4a166b5c"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230622-0005"
},
{
"type": "WEB",
"url": "https://syzkaller.appspot.com/bug?id=0c4fd9c6aa04ec116d01e915d3b186f71a212cb2"
}
],
"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-7Q2G-6PCX-GCHV
Vulnerability from github – Published: 2022-05-14 01:19 – Updated: 2022-05-14 01:19
VLAI
Details
Use-after-free vulnerability in Irssi before 0.8.21 allows remote attackers to cause a denial of service (crash) via an invalid nick message.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2017-5194"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-03-03T15:59:00Z",
"severity": "HIGH"
},
"details": "Use-after-free vulnerability in Irssi before 0.8.21 allows remote attackers to cause a denial of service (crash) via an invalid nick message.",
"id": "GHSA-7q2g-6pcx-gchv",
"modified": "2022-05-14T01:19:33Z",
"published": "2022-05-14T01:19:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5194"
},
{
"type": "WEB",
"url": "https://irssi.org/security/irssi_sa_2017_01.txt"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201701-45"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2017/01/06/1"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/95310"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7Q3P-9HF2-3VXW
Vulnerability from github – Published: 2026-05-29 00:38 – Updated: 2026-05-29 18:31
VLAI
Details
Use after free in WebView in Google Chrome on Android 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-2026-9888"
],
"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 WebView in Google Chrome on Android 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-7q3p-9hf2-3vxw",
"modified": "2026-05-29T18:31:22Z",
"published": "2026-05-29T00:38:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9888"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/511715166"
}
],
"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-7Q4C-9JC5-4VC9
Vulnerability from github – Published: 2022-05-14 03:43 – Updated: 2022-05-14 03:43
VLAI
Details
A use after free in PDFium in Google Chrome prior to 62.0.3202.62 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2017-5126"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-02-07T23:29:00Z",
"severity": "HIGH"
},
"details": "A use after free in PDFium in Google Chrome prior to 62.0.3202.62 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file.",
"id": "GHSA-7q4c-9jc5-4vc9",
"modified": "2022-05-14T03:43:38Z",
"published": "2022-05-14T03:43:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5126"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2997"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2017/10/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/760455"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201710-24"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2017/dsa-4020"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/101482"
}
],
"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-7Q4C-V8R2-PC77
Vulnerability from github – Published: 2026-07-03 21:31 – Updated: 2026-07-03 21:31
VLAI
Details
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-57986"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-03T21:17:01Z",
"severity": "HIGH"
},
"details": "Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-7q4c-v8r2-pc77",
"modified": "2026-07-03T21:31:39Z",
"published": "2026-07-03T21:31:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57986"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57986"
}
],
"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-7Q4P-93G6-4WF9
Vulnerability from github – Published: 2025-02-25 18:31 – Updated: 2026-04-06 15:31
VLAI
Details
A use-after-free flaw was found in X.Org and Xwayland. When a device is removed while still frozen, the events queued for that device remain while the device is freed. Replaying the events will cause a use-after-free.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-26600"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-25T16:15:39Z",
"severity": "HIGH"
},
"details": "A use-after-free flaw was found in X.Org and Xwayland. When a device is removed while still frozen, the events queued for that device remain while the device is freed. Replaying the events will cause a use-after-free.",
"id": "GHSA-7q4p-93g6-4wf9",
"modified": "2026-04-06T15:31:19Z",
"published": "2025-02-25T18:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26600"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20250516-0005"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00036.html"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2345252"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-26600"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:7458"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:7165"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:7163"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:3976"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2880"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2879"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2875"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2874"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2873"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2866"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2865"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2862"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2861"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2502"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2500"
}
],
"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-7Q63-MGR2-2P5J
Vulnerability from github – Published: 2022-05-24 19:14 – Updated: 2022-05-24 19:14
VLAI
Details
Use-after-free vulnerability in kernel graphics driver because of storing an invalid pointer in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking
{
"affected": [],
"aliases": [
"CVE-2021-1947"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-17T07:15:00Z",
"severity": "HIGH"
},
"details": "Use-after-free vulnerability in kernel graphics driver because of storing an invalid pointer in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking",
"id": "GHSA-7q63-mgr2-2p5j",
"modified": "2022-05-24T19:14:58Z",
"published": "2022-05-24T19:14:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1947"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin"
}
],
"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.