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Common Weakness Enumeration

CWE-416

Allowed

Use 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

10893 vulnerabilities reference this CWE, most recent first.

GHSA-XCMR-V73H-8G32

Vulnerability from github – Published: 2025-05-02 18:31 – Updated: 2025-11-12 21:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

mptcp: fix UaF in listener shutdown

As reported by Christoph after having refactored the passive socket initialization, the mptcp listener shutdown path is prone to an UaF issue.

BUG: KASAN: use-after-free in _raw_spin_lock_bh+0x73/0xe0 Write of size 4 at addr ffff88810cb23098 by task syz-executor731/1266

CPU: 1 PID: 1266 Comm: syz-executor731 Not tainted 6.2.0-rc59af4eaa31c1f6c00c8f1e448ed99a45c66340dd5 #6 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x6e/0x91 print_report+0x16a/0x46f kasan_report+0xad/0x130 kasan_check_range+0x14a/0x1a0 _raw_spin_lock_bh+0x73/0xe0 subflow_error_report+0x6d/0x110 sk_error_report+0x3b/0x190 tcp_disconnect+0x138c/0x1aa0 inet_child_forget+0x6f/0x2e0 inet_csk_listen_stop+0x209/0x1060 __mptcp_close_ssk+0x52d/0x610 mptcp_destroy_common+0x165/0x640 mptcp_destroy+0x13/0x80 __mptcp_destroy_sock+0xe7/0x270 __mptcp_close+0x70e/0x9b0 mptcp_close+0x2b/0x150 inet_release+0xe9/0x1f0 __sock_release+0xd2/0x280 sock_close+0x15/0x20 __fput+0x252/0xa20 task_work_run+0x169/0x250 exit_to_user_mode_prepare+0x113/0x120 syscall_exit_to_user_mode+0x1d/0x40 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc

The msk grace period can legitly expire in between the last reference count dropped in mptcp_subflow_queue_clean() and the later eventual access in inet_csk_listen_stop()

After the previous patch we don't need anymore special-casing msk listener socket cleanup: the mptcp worker will process each of the unaccepted msk sockets.

Just drop the now unnecessary code.

Please note this commit depends on the two parent ones:

mptcp: refactor passive socket initialization mptcp: use the workqueue to destroy unaccepted sockets

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-53088"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-02T16:15:27Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix UaF in listener shutdown\n\nAs reported by Christoph after having refactored the passive\nsocket initialization, the mptcp listener shutdown path is prone\nto an UaF issue.\n\n  BUG: KASAN: use-after-free in _raw_spin_lock_bh+0x73/0xe0\n  Write of size 4 at addr ffff88810cb23098 by task syz-executor731/1266\n\n  CPU: 1 PID: 1266 Comm: syz-executor731 Not tainted 6.2.0-rc59af4eaa31c1f6c00c8f1e448ed99a45c66340dd5 #6\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n  Call Trace:\n   \u003cTASK\u003e\n   dump_stack_lvl+0x6e/0x91\n   print_report+0x16a/0x46f\n   kasan_report+0xad/0x130\n   kasan_check_range+0x14a/0x1a0\n   _raw_spin_lock_bh+0x73/0xe0\n   subflow_error_report+0x6d/0x110\n   sk_error_report+0x3b/0x190\n   tcp_disconnect+0x138c/0x1aa0\n   inet_child_forget+0x6f/0x2e0\n   inet_csk_listen_stop+0x209/0x1060\n   __mptcp_close_ssk+0x52d/0x610\n   mptcp_destroy_common+0x165/0x640\n   mptcp_destroy+0x13/0x80\n   __mptcp_destroy_sock+0xe7/0x270\n   __mptcp_close+0x70e/0x9b0\n   mptcp_close+0x2b/0x150\n   inet_release+0xe9/0x1f0\n   __sock_release+0xd2/0x280\n   sock_close+0x15/0x20\n   __fput+0x252/0xa20\n   task_work_run+0x169/0x250\n   exit_to_user_mode_prepare+0x113/0x120\n   syscall_exit_to_user_mode+0x1d/0x40\n   do_syscall_64+0x48/0x90\n   entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nThe msk grace period can legitly expire in between the last\nreference count dropped in mptcp_subflow_queue_clean() and\nthe later eventual access in inet_csk_listen_stop()\n\nAfter the previous patch we don\u0027t need anymore special-casing\nmsk listener socket cleanup: the mptcp worker will process each\nof the unaccepted msk sockets.\n\nJust drop the now unnecessary code.\n\nPlease note this commit depends on the two parent ones:\n\n  mptcp: refactor passive socket initialization\n  mptcp: use the workqueue to destroy unaccepted sockets",
  "id": "GHSA-xcmr-v73h-8g32",
  "modified": "2025-11-12T21:31:01Z",
  "published": "2025-05-02T18:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53088"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a3f4f1f9c27215e4ddcd312558342e57b93e518"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f4f4cf5d32f10543deb946a37111e714579511e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5564be74a22a61855f8b8c100d8c4abb003bb792"
    }
  ],
  "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-XCQ8-M6WR-W65P

Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details

Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-50396"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-14T18:17:41Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-xcq8-m6wr-w65p",
  "modified": "2026-07-14T18:32:20Z",
  "published": "2026-07-14T18:32:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50396"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50396"
    }
  ],
  "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-XCV8-4M2V-RX26

Vulnerability from github – Published: 2025-12-09 18:30 – Updated: 2025-12-09 18:30
VLAI
Details

Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-62559"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-09T18:16:01Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.",
  "id": "GHSA-xcv8-4m2v-rx26",
  "modified": "2025-12-09T18:30:47Z",
  "published": "2025-12-09T18:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62559"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62559"
    }
  ],
  "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-XCVV-2PHH-WM85

Vulnerability from github – Published: 2026-01-28 18:30 – Updated: 2026-01-28 18:30
VLAI
Details

NVIDIA vGPU software contains a vulnerability in the Virtual GPU Manager, where a malicious guest could cause heap memory access after the memory is freed. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, denial of service, or information disclosure.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-33220"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-28T18:16:48Z",
    "severity": "HIGH"
  },
  "details": "NVIDIA vGPU software contains a vulnerability in the Virtual GPU Manager, where a malicious guest could cause heap memory access after the memory is freed. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, denial of service, or information disclosure.",
  "id": "GHSA-xcvv-2phh-wm85",
  "modified": "2026-01-28T18:30:49Z",
  "published": "2026-01-28T18:30:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-33220"
    },
    {
      "type": "WEB",
      "url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5747"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-33220"
    }
  ],
  "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-XCXV-6FR5-34FM

Vulnerability from github – Published: 2022-05-24 17:02 – Updated: 2024-04-04 02:41
VLAI
Details

An exploitable code execution vulnerability exists in the processing of multi-part/form-data requests within the base GoAhead web server application in versions v5.0.1, v.4.1.1 and v3.6.5. A specially crafted HTTP request can lead to a use-after-free condition during the processing of this request that can be used to corrupt heap structures that could lead to full code execution. The request can be unauthenticated in the form of GET or POST requests, and does not require the requested resource to exist on the server.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-5096"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-12-03T22:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "An exploitable code execution vulnerability exists in the processing of multi-part/form-data requests within the base GoAhead web server application in versions v5.0.1, v.4.1.1 and v3.6.5. A specially crafted HTTP request can lead to a use-after-free condition during the processing of this request that can be used to corrupt heap structures that could lead to full code execution. The request can be unauthenticated in the form of GET or POST requests, and does not require the requested resource to exist on the server.",
  "id": "GHSA-xcxv-6fr5-34fm",
  "modified": "2024-04-04T02:41:45Z",
  "published": "2022-05-24T17:02:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5096"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0888"
    }
  ],
  "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-XF27-R9VM-Q26M

Vulnerability from github – Published: 2022-05-13 01:01 – Updated: 2022-05-13 01:01
VLAI
Details

An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.2.0.9297. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-3995"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-10-03T15:29:00Z",
    "severity": "HIGH"
  },
  "details": "An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software\u0027s PDF Reader, version 9.2.0.9297. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.",
  "id": "GHSA-xf27-r9vm-q26m",
  "modified": "2022-05-13T01:01:47Z",
  "published": "2022-05-13T01:01:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-3995"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2018-0663"
    },
    {
      "type": "WEB",
      "url": "https://www.foxitsoftware.com/support/security-bulletins.php"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1041769"
    }
  ],
  "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-XF2C-WP2F-V3JR

Vulnerability from github – Published: 2022-05-14 02:19 – Updated: 2022-05-14 02:19
VLAI
Details

WebCore/platform/graphics/texmap/TextureMapperLayer.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.2, is vulnerable to a use after free for a WebCore::TextureMapperLayer object.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-12294"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-06-19T21:29:00Z",
    "severity": "HIGH"
  },
  "details": "WebCore/platform/graphics/texmap/TextureMapperLayer.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.2, is vulnerable to a use after free for a WebCore::TextureMapperLayer object.",
  "id": "GHSA-xf2c-wp2f-v3jr",
  "modified": "2022-05-14T02:19:44Z",
  "published": "2022-05-14T02:19:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12294"
    },
    {
      "type": "WEB",
      "url": "https://bugs.webkit.org/show_bug.cgi?id=184729"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201808-04"
    },
    {
      "type": "WEB",
      "url": "https://trac.webkit.org/changeset/231300/webkit"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2018/06/14/1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/542087/100/0/threaded"
    }
  ],
  "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-XF2W-5673-H6WW

Vulnerability from github – Published: 2022-11-04 19:01 – Updated: 2026-06-10 18:44
VLAI
Summary
diplib Double Free
Details

diplib v3.0.0 is vulnerable to Double Free.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "diplib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-39432"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415",
      "CWE-416"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-21T22:14:21Z",
    "nvd_published_at": "2022-11-04T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "diplib v3.0.0 is vulnerable to Double Free.",
  "id": "GHSA-xf2w-5673-h6ww",
  "modified": "2026-06-10T18:44:04Z",
  "published": "2022-11-04T19:01:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39432"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DIPlib/diplib/issues/80"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DIPlib/diplib/commit/8b9a2670ce66ff2fd5addf592f7825e1f5adb5b5"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/DIPlib/diplib"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/diplib/PYSEC-2022-43131.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "diplib Double Free"
}

GHSA-XF3J-CFRC-6WX5

Vulnerability from github – Published: 2022-01-29 00:00 – Updated: 2022-02-03 00:00
VLAI
Details

A CWE-416: Use After Free vulnerability exists that could cause arbitrary code execution when a malicious *.gd1 configuration file is loaded into the GUIcon tool. Affected Product: Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-22808"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-01-28T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "A CWE-416: Use After Free vulnerability exists that could cause arbitrary code execution when a malicious *.gd1 configuration file is loaded into the GUIcon tool. Affected Product: Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior",
  "id": "GHSA-xf3j-cfrc-6wx5",
  "modified": "2022-02-03T00:00:25Z",
  "published": "2022-01-29T00:00:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22808"
    },
    {
      "type": "WEB",
      "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-313-07"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-XF4C-FRC6-WRRH

Vulnerability from github – Published: 2025-02-27 21:32 – Updated: 2025-02-27 21:32
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: avoid skb access on nf_stolen

When verdict is NF_STOLEN, the skb might have been freed.

When tracing is enabled, this can result in a use-after-free: 1. access to skb->nf_trace 2. access to skb->mark 3. computation of trace id 4. dump of packet payload

To avoid 1, keep a cached copy of skb->nf_trace in the trace state struct. Refresh this copy whenever verdict is != STOLEN.

Avoid 2 by skipping skb->mark access if verdict is STOLEN.

3 is avoided by precomputing the trace id.

Only dump the packet when verdict is not "STOLEN".

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-49622"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:37Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: avoid skb access on nf_stolen\n\nWhen verdict is NF_STOLEN, the skb might have been freed.\n\nWhen tracing is enabled, this can result in a use-after-free:\n1. access to skb-\u003enf_trace\n2. access to skb-\u003emark\n3. computation of trace id\n4. dump of packet payload\n\nTo avoid 1, keep a cached copy of skb-\u003enf_trace in the\ntrace state struct.\nRefresh this copy whenever verdict is != STOLEN.\n\nAvoid 2 by skipping skb-\u003emark access if verdict is STOLEN.\n\n3 is avoided by precomputing the trace id.\n\nOnly dump the packet when verdict is not \"STOLEN\".",
  "id": "GHSA-xf4c-frc6-wrrh",
  "modified": "2025-02-27T21:32:14Z",
  "published": "2025-02-27T21:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49622"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0016d5d46d7440729a3132f61a8da3bf7f84e2ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e34b9ed96ce3b06c79bf884009b16961ca478f87"
    }
  ],
  "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
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.