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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
10190 vulnerabilities reference this CWE, most recent first.
GHSA-C3R2-X25X-6JWC
Vulnerability from github – Published: 2022-05-13 01:04 – Updated: 2022-05-13 01:04Use-after-free vulnerability in the resolver in nginx 0.6.18 through 1.8.0 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (worker process crash) or possibly have unspecified other impact via a crafted DNS response related to CNAME response processing.
{
"affected": [],
"aliases": [
"CVE-2016-0746"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-02-15T19:59:00Z",
"severity": "CRITICAL"
},
"details": "Use-after-free vulnerability in the resolver in nginx 0.6.18 through 1.8.0 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (worker process crash) or possibly have unspecified other impact via a crafted DNS response related to CNAME response processing.",
"id": "GHSA-c3r2-x25x-6jwc",
"modified": "2022-05-13T01:04:26Z",
"published": "2022-05-13T01:04:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-0746"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2016:1425"
},
{
"type": "WEB",
"url": "https://bto.bluecoat.com/security-advisory/sa115"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1302588"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201606-06"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT212818"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.html"
},
{
"type": "WEB",
"url": "http://mailman.nginx.org/pipermail/nginx/2016-January/049700.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2021/Sep/36"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3473"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1034869"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2892-1"
}
],
"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-C3WM-P2JR-8F5G
Vulnerability from github – Published: 2024-05-21 18:31 – Updated: 2025-11-03 21:31In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix use-after-free bug in cifs_debug_data_proc_show()
Skip SMB sessions that are being teared down (e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show() to avoid use-after-free in @ses.
This fixes the following GPF when reading from /proc/fs/cifs/DebugData while mounting and umounting
[ 816.251274] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI ... [ 816.260138] Call Trace: [ 816.260329] [ 816.260499] ? die_addr+0x36/0x90 [ 816.260762] ? exc_general_protection+0x1b3/0x410 [ 816.261126] ? asm_exc_general_protection+0x26/0x30 [ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs] [ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs] [ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs] [ 816.262689] ? seq_read_iter+0x379/0x470 [ 816.262995] seq_read_iter+0x118/0x470 [ 816.263291] proc_reg_read_iter+0x53/0x90 [ 816.263596] ? srso_alias_return_thunk+0x5/0x7f [ 816.263945] vfs_read+0x201/0x350 [ 816.264211] ksys_read+0x75/0x100 [ 816.264472] do_syscall_64+0x3f/0x90 [ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 816.265135] RIP: 0033:0x7fd5e669d381
{
"affected": [],
"aliases": [
"CVE-2023-52752"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T16:15:14Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix use-after-free bug in cifs_debug_data_proc_show()\n\nSkip SMB sessions that are being teared down\n(e.g. @ses-\u003eses_status == SES_EXITING) in cifs_debug_data_proc_show()\nto avoid use-after-free in @ses.\n\nThis fixes the following GPF when reading from /proc/fs/cifs/DebugData\nwhile mounting and umounting\n\n [ 816.251274] general protection fault, probably for non-canonical\n address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI\n ...\n [ 816.260138] Call Trace:\n [ 816.260329] \u003cTASK\u003e\n [ 816.260499] ? die_addr+0x36/0x90\n [ 816.260762] ? exc_general_protection+0x1b3/0x410\n [ 816.261126] ? asm_exc_general_protection+0x26/0x30\n [ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs]\n [ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs]\n [ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs]\n [ 816.262689] ? seq_read_iter+0x379/0x470\n [ 816.262995] seq_read_iter+0x118/0x470\n [ 816.263291] proc_reg_read_iter+0x53/0x90\n [ 816.263596] ? srso_alias_return_thunk+0x5/0x7f\n [ 816.263945] vfs_read+0x201/0x350\n [ 816.264211] ksys_read+0x75/0x100\n [ 816.264472] do_syscall_64+0x3f/0x90\n [ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n [ 816.265135] RIP: 0033:0x7fd5e669d381",
"id": "GHSA-c3wm-p2jr-8f5g",
"modified": "2025-11-03T21:31:05Z",
"published": "2024-05-21T18:31:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52752"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2abdf136784b7edaec7ffe0f4b461b63f9c4c4de"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/336a066990bb3962c46daf574ace596bda9303ce"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
}
],
"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-C3X8-GG69-X2JW
Vulnerability from github – Published: 2022-02-19 00:01 – Updated: 2022-03-19 00:01A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.
{
"affected": [],
"aliases": [
"CVE-2022-0646"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-459"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-18T18:15:00Z",
"severity": "HIGH"
},
"details": "A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.",
"id": "GHSA-c3x8-gg69-x2jw",
"modified": "2022-03-19T00:01:45Z",
"published": "2022-02-19T00:01:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0646"
},
{
"type": "WEB",
"url": "https://lore.kernel.org/all/20220211011552.1861886-1-jk%40codeconstruct.com.au"
},
{
"type": "WEB",
"url": "https://lore.kernel.org/all/20220211011552.1861886-1-jk@codeconstruct.com.au"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220318-0006"
}
],
"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-C429-FC87-8669
Vulnerability from github – Published: 2022-05-13 01:33 – Updated: 2022-05-13 01:33This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. 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 boundItem method of a TimeField. 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-6484.
{
"affected": [],
"aliases": [
"CVE-2018-17647"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-01-24T04:29:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. 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 boundItem method of a TimeField. 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-6484.",
"id": "GHSA-c429-fc87-8669",
"modified": "2022-05-13T01:33:57Z",
"published": "2022-05-13T01:33:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17647"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-18-1154"
}
],
"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-C433-3382-MW5V
Vulnerability from github – Published: 2026-08-11 18:31 – Updated: 2026-08-11 21:33Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-68820"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-11T17:19:06Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-c433-3382-mw5v",
"modified": "2026-08-11T21:33:01Z",
"published": "2026-08-11T18:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68820"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68820"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-68820"
}
],
"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-C43W-GR2Q-7PRV
Vulnerability from github – Published: 2024-05-14 18:31 – Updated: 2024-05-14 18:31Windows DWM Core Library Elevation of Privilege Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-30032"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-14T17:17:04Z",
"severity": "HIGH"
},
"details": "Windows DWM Core Library Elevation of Privilege Vulnerability",
"id": "GHSA-c43w-gr2q-7prv",
"modified": "2024-05-14T18:31:04Z",
"published": "2024-05-14T18:31:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30032"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30032"
}
],
"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-C45P-95WM-GFQP
Vulnerability from github – Published: 2022-05-24 17:46 – Updated: 2022-05-24 17:46An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvm_host.h, and virt/kvm/kvm_main.c.
{
"affected": [],
"aliases": [
"CVE-2020-36313"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-07T00:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvm_host.h, and virt/kvm/kvm_main.c.",
"id": "GHSA-c45p-95wm-gfqp",
"modified": "2022-05-24T17:46:45Z",
"published": "2022-05-24T17:46:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36313"
},
{
"type": "WEB",
"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0774a964ef561b7170d8d1b1bfe6f88002b6d219"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20210604-0005"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-C469-4XPM-HC52
Vulnerability from github – Published: 2022-05-14 02:01 – Updated: 2022-05-14 02:01A use after free in V8 in Google Chrome prior to 62.0.3202.89 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2017-15399"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-08-28T20:29:00Z",
"severity": "HIGH"
},
"details": "A use after free in V8 in Google Chrome prior to 62.0.3202.89 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-c469-4xpm-hc52",
"modified": "2022-05-14T02:01:21Z",
"published": "2022-05-14T02:01:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15399"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:3151"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2017/11/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/776677"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201711-02"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2017/dsa-4024"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/101692"
}
],
"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-C46P-5PQ2-QPCG
Vulnerability from github – Published: 2023-11-01 18:30 – Updated: 2025-04-29 21:31Use after free in Profiles in Google Chrome prior to 119.0.6045.105 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via specific UI gestures. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2023-5854"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-01T18:15:10Z",
"severity": "HIGH"
},
"details": "Use after free in Profiles in Google Chrome prior to 119.0.6045.105 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via specific UI gestures. (Chromium security severity: Medium)",
"id": "GHSA-c46p-5pq2-qpcg",
"modified": "2025-04-29T21:31:30Z",
"published": "2023-11-01T18:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5854"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2023/10/stable-channel-update-for-desktop_31.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1488267"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2MHLJRFWZNY6BFOW25Q4FEESVWZKS4C2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EBA4KD5ZSV6XWWFLVR5UBYKKNOYMH33H"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PHWLT3M2AQDFD7RNAM3NJMYUC5KHMO5V"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202311-11"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202312-07"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-34"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5546"
}
],
"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-C475-923P-GG3C
Vulnerability from github – Published: 2024-03-12 18:31 – Updated: 2024-03-12 18:31Windows Graphics Component Elevation of Privilege Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-21437"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-12T17:15:52Z",
"severity": "HIGH"
},
"details": "Windows Graphics Component Elevation of Privilege Vulnerability",
"id": "GHSA-c475-923p-gg3c",
"modified": "2024-03-12T18:31:13Z",
"published": "2024-03-12T18:31:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21437"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21437"
}
],
"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"
}
]
}
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.