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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
12502 vulnerabilities reference this CWE, most recent first.
GHSA-JXR7-F3G8-36RM
Vulnerability from github – Published: 2024-11-07 12:30 – Updated: 2024-11-20 18:32In the Linux kernel, the following vulnerability has been resolved:
drm/xe: Don't free job in TDR
Freeing job in TDR is not safe as TDR can pass the run_job thread resulting in UAF. It is only safe for free job to naturally be called by the scheduler. Rather free job in TDR, add to pending list.
(cherry picked from commit ea2f6a77d0c40d97f4a4dc93fee4afe15d94926d)
{
"affected": [],
"aliases": [
"CVE-2024-50149"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-07T10:15:06Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Don\u0027t free job in TDR\n\nFreeing job in TDR is not safe as TDR can pass the run_job thread\nresulting in UAF. It is only safe for free job to naturally be called by\nthe scheduler. Rather free job in TDR, add to pending list.\n\n(cherry picked from commit ea2f6a77d0c40d97f4a4dc93fee4afe15d94926d)",
"id": "GHSA-jxr7-f3g8-36rm",
"modified": "2024-11-20T18:32:15Z",
"published": "2024-11-07T12:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50149"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/82926f52d7a09c65d916c0ef8d4305fc95d68c0c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/be8fe75e57f8fa3f87e3b1c283cc7cd9f9b80867"
}
],
"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-JXWM-2FGW-85F5
Vulnerability from github – Published: 2022-04-09 00:00 – Updated: 2022-04-16 00:01heap-use-after-free in GitHub repository radareorg/radare2 prior to 5.6.8. This vulnerability is capable of inducing denial of service.
{
"affected": [],
"aliases": [
"CVE-2022-1284"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-08T19:15:00Z",
"severity": "MODERATE"
},
"details": "heap-use-after-free in GitHub repository radareorg/radare2 prior to 5.6.8. This vulnerability is capable of inducing denial of service.",
"id": "GHSA-jxwm-2fgw-85f5",
"modified": "2022-04-16T00:01:25Z",
"published": "2022-04-09T00:00:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1284"
},
{
"type": "WEB",
"url": "https://github.com/radareorg/radare2/commit/64a82e284dddabaeb549228380103b57dead32a6"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/e98ad92c-3a64-48fb-84d4-d13afdbcbdd7"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-M234-R435-CXJW
Vulnerability from github – Published: 2026-05-20 12:30 – Updated: 2026-06-30 03:36NLnet Labs Unbound 1.19.1 up to and including version 1.25.0 has a vulnerability in the DNSSEC validator that enables denial of service and possible remote code execution as a result of deep copying a data structure and erroneously overwriting a destination pointer. An adversary can exploit the vulnerability by controlling a malicious signed zone and querying a vulnerable Unbound. When DS sub-queries need to suspend validation due to NSEC3 computational budget exhaustion (introduced in Unbound 1.19.1), Unbound deep-copies response messages to preserve them across memory region teardown. A struct-assignment bug overwrites the destination's pointer with the source's pointer. After the sub-query region is freed, the resumed validator dereferences this dangling pointer, triggering a crash or potentially enabling arbitrary code execution. Unbound 1.25.1 contains a patch with a fix to preserve the correct pointer when deep copying the data structure.
{
"affected": [],
"aliases": [
"CVE-2026-33278"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-20T10:16:26Z",
"severity": "CRITICAL"
},
"details": "NLnet Labs Unbound 1.19.1 up to and including version 1.25.0 has a vulnerability in the DNSSEC validator that enables denial of service and possible remote code execution as a result of deep copying a data structure and erroneously overwriting a destination pointer. An adversary can exploit the vulnerability by controlling a malicious signed zone and querying a vulnerable Unbound. When DS sub-queries need to suspend validation due to NSEC3 computational budget exhaustion (introduced in Unbound 1.19.1), Unbound deep-copies response messages to preserve them across memory region teardown. A struct-assignment bug overwrites the destination\u0027s pointer with the source\u0027s pointer. After the sub-query region is freed, the resumed validator dereferences this dangling pointer, triggering a crash or potentially enabling arbitrary code execution. Unbound 1.25.1 contains a patch with a fix to preserve the correct pointer when deep copying the data structure.",
"id": "GHSA-m234-r435-cxjw",
"modified": "2026-06-30T03:36:45Z",
"published": "2026-05-20T12:30:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33278"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:19752"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:23231"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:24369"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-33278"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479808"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33278.json"
},
{
"type": "WEB",
"url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2026-33278.txt"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/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:Red",
"type": "CVSS_V4"
}
]
}
GHSA-M23J-MXGF-384M
Vulnerability from github – Published: 2023-06-23 18:30 – Updated: 2024-04-04 05:07A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, iOS 15.7.6 and iPadOS 15.7.6, macOS Ventura 13.4, tvOS 16.5, iOS 16.5 and iPadOS 16.5, macOS Big Sur 11.7.7, macOS Monterey 12.6.6. An app may be able to execute arbitrary code with kernel privileges
{
"affected": [],
"aliases": [
"CVE-2023-32398"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-23T18:15:12Z",
"severity": "HIGH"
},
"details": "A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, iOS 15.7.6 and iPadOS 15.7.6, macOS Ventura 13.4, tvOS 16.5, iOS 16.5 and iPadOS 16.5, macOS Big Sur 11.7.7, macOS Monterey 12.6.6. An app may be able to execute arbitrary code with kernel privileges",
"id": "GHSA-m23j-mxgf-384m",
"modified": "2024-04-04T05:07:58Z",
"published": "2023-06-23T18:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32398"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213757"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213758"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213759"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213760"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213761"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213764"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213765"
}
],
"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-M23M-HCXH-F369
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33Use after free in Windows ALPC allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-69834"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:19:55Z",
"severity": "HIGH"
},
"details": "Use after free in Windows ALPC allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-m23m-hcxh-f369",
"modified": "2026-09-08T18:33:02Z",
"published": "2026-09-08T18:33:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69834"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69834"
}
],
"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-M23P-56XP-28PP
Vulnerability from github – Published: 2026-10-13 21:33 – Updated: 2026-10-13 21:33Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2026-69997"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-13T19:19:10Z",
"severity": "HIGH"
},
"details": "Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-m23p-56xp-28pp",
"modified": "2026-10-13T21:33:58Z",
"published": "2026-10-13T21:33:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69997"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69997"
}
],
"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-M242-R26H-QCVH
Vulnerability from github – Published: 2026-09-23 09:30 – Updated: 2026-09-23 09:30A use-after-free vulnerability exists in Foxit PDF Editor/Reader’s handling of PDF annotations. Reentrant annotation deletion triggered by embedded JavaScript can cause the application to access an annotation object after it has been released, resulting in a use-after-free condition and application crash.
{
"affected": [],
"aliases": [
"CVE-2026-91816"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-23T08:17:13Z",
"severity": "HIGH"
},
"details": "A use-after-free vulnerability exists in Foxit PDF Editor/Reader\u2019s handling of PDF annotations. Reentrant annotation deletion triggered by embedded JavaScript can cause the application to access an annotation object after it has been released, resulting in a use-after-free condition and application crash.",
"id": "GHSA-m242-r26h-qcvh",
"modified": "2026-09-23T09:30:30Z",
"published": "2026-09-23T09:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91816"
},
{
"type": "WEB",
"url": "https://www.foxit.com/support/security-bulletins.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-M253-3J38-482H
Vulnerability from github – Published: 2024-05-17 15:31 – Updated: 2026-05-12 12:31In the Linux kernel, the following vulnerability has been resolved:
wifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach
This is the candidate patch of CVE-2023-47233 : https://nvd.nist.gov/vuln/detail/CVE-2023-47233
In brcm80211 driver,it starts with the following invoking chain to start init a timeout worker:
->brcmf_usb_probe ->brcmf_usb_probe_cb ->brcmf_attach ->brcmf_bus_started ->brcmf_cfg80211_attach ->wl_init_priv ->brcmf_init_escan ->INIT_WORK(&cfg->escan_timeout_work, brcmf_cfg80211_escan_timeout_worker);
If we disconnect the USB by hotplug, it will call brcmf_usb_disconnect to make cleanup. The invoking chain is :
brcmf_usb_disconnect ->brcmf_usb_disconnect_cb ->brcmf_detach ->brcmf_cfg80211_detach ->kfree(cfg);
While the timeout woker may still be running. This will cause a use-after-free bug on cfg in brcmf_cfg80211_escan_timeout_worker.
Fix it by deleting the timer and canceling the worker in brcmf_cfg80211_detach.
[arend.vanspriel@broadcom.com: keep timer delete as is and cancel work just before free]
{
"affected": [],
"aliases": [
"CVE-2024-35811"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-17T14:15:15Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach\n\nThis is the candidate patch of CVE-2023-47233 :\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-47233\n\nIn brcm80211 driver,it starts with the following invoking chain\nto start init a timeout worker:\n\n-\u003ebrcmf_usb_probe\n -\u003ebrcmf_usb_probe_cb\n -\u003ebrcmf_attach\n -\u003ebrcmf_bus_started\n -\u003ebrcmf_cfg80211_attach\n -\u003ewl_init_priv\n -\u003ebrcmf_init_escan\n -\u003eINIT_WORK(\u0026cfg-\u003eescan_timeout_work,\n\t\t brcmf_cfg80211_escan_timeout_worker);\n\nIf we disconnect the USB by hotplug, it will call\nbrcmf_usb_disconnect to make cleanup. The invoking chain is :\n\nbrcmf_usb_disconnect\n -\u003ebrcmf_usb_disconnect_cb\n -\u003ebrcmf_detach\n -\u003ebrcmf_cfg80211_detach\n -\u003ekfree(cfg);\n\nWhile the timeout woker may still be running. This will cause\na use-after-free bug on cfg in brcmf_cfg80211_escan_timeout_worker.\n\nFix it by deleting the timer and canceling the worker in\nbrcmf_cfg80211_detach.\n\n[arend.vanspriel@broadcom.com: keep timer delete as is and cancel work just before free]",
"id": "GHSA-m253-3j38-482h",
"modified": "2026-05-12T12:31:46Z",
"published": "2024-05-17T15:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35811"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0a7591e14a8da794d0b93b5d1c6254ccb23adacb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0b812f706fd7090be74812101114a0e165b36744"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0f7352557a35ab7888bc7831411ec8a3cbe20d78"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/190794848e2b9d15de92d502b6ac652806904f5a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/202c503935042272e2f9e1bb549d5f69a8681169"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6678a1e7d896c00030b31491690e8ddc9a90767a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8c36205123dc57349b59b4f1a2301eb278cbc731"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8e3f03f4ef7c36091f46e7349096efb5a2cdb3a1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bacb8c3ab86dcd760c15903fcee58169bc3026aa"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
}
],
"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-M286-XWP3-RFRJ
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 9.0.1.5096. 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 processing of StrikeOut annotations. 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-6219.
{
"affected": [],
"aliases": [
"CVE-2018-14303"
],
"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 9.0.1.5096. 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 processing of StrikeOut annotations. 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-6219.",
"id": "GHSA-m286-xwp3-rfrj",
"modified": "2022-05-13T01:34:34Z",
"published": "2022-05-13T01:34:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14303"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
},
{
"type": "WEB",
"url": "https://zerodayinitiative.com/advisories/ZDI-18-763"
}
],
"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-M28G-H5XQ-JC4P
Vulnerability from github – Published: 2026-06-26 00:32 – Updated: 2026-06-26 03:31Use after free in Payments in Google Chrome on Android prior to 149.0.7827.201 allowed a local attacker to potentially exploit heap corruption via physical access to the device. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2026-13282"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-25T22:17:00Z",
"severity": "MODERATE"
},
"details": "Use after free in Payments in Google Chrome on Android prior to 149.0.7827.201 allowed a local attacker to potentially exploit heap corruption via physical access to the device. (Chromium security severity: High)",
"id": "GHSA-m28g-h5xq-jc4p",
"modified": "2026-06-26T03:31:29Z",
"published": "2026-06-26T00:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13282"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01245939337.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/517522620"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/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.