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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

9811 vulnerabilities reference this CWE, most recent first.

GHSA-79VG-7GHJ-4WHJ

Vulnerability from github – Published: 2024-12-19 21:31 – Updated: 2025-03-13 18:32
VLAI
Details

Another “use after free” code execution vulnerability exists in the Rockwell Automation Arena® that could allow a threat actor to craft a DOE file and force the software to use a resource that was already used. If exploited, a threat actor could leverage this vulnerability to execute arbitrary code. To exploit this vulnerability, a legitimate user must execute the malicious code crafted by the threat actor.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-12175"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-19T21:15:07Z",
    "severity": "HIGH"
  },
  "details": "Another \u201cuse after free\u201d\u00a0code execution vulnerability exists in the Rockwell Automation\u00a0Arena\u00ae\u00a0that could allow a threat actor to craft a DOE file and force the software to use a resource that was already used. If exploited, a threat actor could leverage this vulnerability to execute arbitrary code. To exploit this vulnerability, a legitimate user must execute the malicious code crafted by the threat actor.",
  "id": "GHSA-79vg-7ghj-4whj",
  "modified": "2025-03-13T18:32:16Z",
  "published": "2024-12-19T21:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-12175"
    },
    {
      "type": "WEB",
      "url": "https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1713.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"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-79W3-7QR6-6X7V

Vulnerability from github – Published: 2022-05-24 17:30 – Updated: 2026-02-23 18:31
VLAI
Details

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-16930, CVE-2020-16931, CVE-2020-16932.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-16929"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-10-16T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka \u0027Microsoft Excel Remote Code Execution Vulnerability\u0027. This CVE ID is unique from CVE-2020-16930, CVE-2020-16931, CVE-2020-16932.",
  "id": "GHSA-79w3-7qr6-6x7v",
  "modified": "2026-02-23T18:31:48Z",
  "published": "2022-05-24T17:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-16929"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16929"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1251"
    }
  ],
  "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-79WR-8P99-XVR6

Vulnerability from github – Published: 2026-01-23 06:31 – Updated: 2026-01-23 06:31
VLAI
Details

ALGO 8180 IP Audio Alerter SIP Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ALGO 8180 IP Audio Alerter devices. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of SIP calls. 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 device. Was ZDI-CAN-28303.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-0794"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-23T04:16:07Z",
    "severity": "HIGH"
  },
  "details": "ALGO 8180 IP Audio Alerter SIP Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ALGO 8180 IP Audio Alerter devices. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the handling of SIP calls. 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 device. Was ZDI-CAN-28303.",
  "id": "GHSA-79wr-8p99-xvr6",
  "modified": "2026-01-23T06:31:25Z",
  "published": "2026-01-23T06:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0794"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-016"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-79X6-R5X5-FVQW

Vulnerability from github – Published: 2023-10-25 21:30 – Updated: 2024-04-30 15:30
VLAI
Details

A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-5574"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-10-25T20:15:18Z",
    "severity": "HIGH"
  },
  "details": "A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service.",
  "id": "GHSA-79x6-r5x5-fvqw",
  "modified": "2024-04-30T15:30:34Z",
  "published": "2023-10-25T21:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5574"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:2298"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-5574"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2244735"
    },
    {
      "type": "WEB",
      "url": "https://lists.x.org/archives/xorg-announce/2023-October/003430.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20231130-0004"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-79XR-CJJW-P6F2

Vulnerability from github – Published: 2025-04-08 18:34 – Updated: 2025-04-08 18:34
VLAI
Details

Use after free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-27480"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-08T18:15:58Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.",
  "id": "GHSA-79xr-cjjw-p6f2",
  "modified": "2025-04-08T18:34:50Z",
  "published": "2025-04-08T18:34:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27480"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27480"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-7C27-JCXR-97CM

Vulnerability from github – Published: 2024-09-10 18:30 – Updated: 2024-09-10 18:30
VLAI
Details

Windows Storage Elevation of Privilege Vulnerability

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-38248"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-10T17:15:29Z",
    "severity": "HIGH"
  },
  "details": "Windows Storage Elevation of Privilege Vulnerability",
  "id": "GHSA-7c27-jcxr-97cm",
  "modified": "2024-09-10T18:30:46Z",
  "published": "2024-09-10T18:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38248"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38248"
    }
  ],
  "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-7C48-PXH3-297C

Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-11-03 21:33
VLAI
Details

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

wifi: at76c50x: fix use after free access in at76_disconnect

The memory pointed to by priv is freed at the end of at76_delete_device function (using ieee80211_free_hw). But the code then accesses the udev field of the freed object to put the USB device. This may also lead to a memory leak of the usb device. Fix this by using udev from interface.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-37796"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T14:15:44Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: at76c50x: fix use after free access in at76_disconnect\n\nThe memory pointed to by priv is freed at the end of at76_delete_device\nfunction (using ieee80211_free_hw). But the code then accesses the udev\nfield of the freed object to put the USB device. This may also lead to a\nmemory leak of the usb device. Fix this by using udev from interface.",
  "id": "GHSA-7c48-pxh3-297c",
  "modified": "2025-11-03T21:33:47Z",
  "published": "2025-05-01T15:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37796"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/152721cbae42713ecfbca6847e0f102ee6b19546"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27c7e63b3cb1a20bb78ed4a36c561ea4579fd7da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c619aec1f538333b56746d2f796aab1bca5c9a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5e7df74745700f059dc117a620e566964a2e8f2c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e4ab3e574c2a335b40fa1f70d1c54fcb58ab33f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ca513631fa6ad3011b8b9197cdde0f351103704"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9682bfef2cf3802515a902e964d774e137be1b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c731cdfddcf1be1590d5ba8c9b508f98e3a2b3d6"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.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-7C4Q-HG77-9JFJ

Vulnerability from github – Published: 2026-03-05 21:30 – Updated: 2026-03-05 21:30
VLAI
Details

Ubuntu Linux 6.8 GA retains the legacy AF_UNIX garbage collector but backports upstream commit 8594d9b85c07 ("af_unix: Don’t call skb_get() for OOB skb"). When orphaned MSG_OOB sockets hit unix_gc(), the garbage collector still calls kfree_skb() as if OOB SKBs held two references; on Ubuntu Linux 6.8 (Noble Numbat) kernel tree, they have only the queue reference, so the buffer is freed while still reachable and subsequent queue walks dereference freed memory, yielding a reliable local privilege escalation (LPE) caused by a use-after-free (UAF). Ubuntu builds that have already taken the new GC stack from commit 4090fa373f0e, and mainline Linux kernels shipping that infrastructure are unaffected because they no longer execute the legacy collector path. This issue affects Ubuntu Linux from 6.8.0-56.58 before 6.8.0-84.84.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-13350"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-05T20:16:10Z",
    "severity": "HIGH"
  },
  "details": "Ubuntu Linux 6.8 GA retains the legacy AF_UNIX garbage collector but backports upstream commit 8594d9b85c07 (\"af_unix: Don\u2019t call skb_get() for OOB skb\"). When orphaned MSG_OOB sockets hit unix_gc(), the garbage collector still calls kfree_skb() as if OOB SKBs held two references; on Ubuntu Linux 6.8 (Noble Numbat) kernel tree, they have only the queue reference, so the buffer is freed while still reachable and subsequent queue walks dereference freed memory, yielding a reliable local privilege escalation (LPE) caused by a use-after-free (UAF). Ubuntu builds that have already taken the new GC stack from commit 4090fa373f0e, and mainline Linux kernels shipping that infrastructure are unaffected because they no longer execute the legacy collector path. This issue affects Ubuntu Linux from 6.8.0-56.58 before 6.8.0-84.84.",
  "id": "GHSA-7c4q-hg77-9jfj",
  "modified": "2026-03-05T21:30:48Z",
  "published": "2026-03-05T21:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13350"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2121515"
    },
    {
      "type": "WEB",
      "url": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=79cbc2a1d4f61e492ddac5da65b075836675f94d"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/03/05/7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:H/SI:H/SA:H/E:X/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:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-7C62-JM8F-5C2W

Vulnerability from github – Published: 2022-06-24 00:00 – Updated: 2022-06-30 00:00
VLAI
Details

LibreDWG v0.12.4.4608 was discovered to contain a heap-use-after-free via the function dwg_add_handleref at dwg.c.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-33027"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-06-23T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "LibreDWG v0.12.4.4608 was discovered to contain a heap-use-after-free via the function dwg_add_handleref at dwg.c.",
  "id": "GHSA-7c62-jm8f-5c2w",
  "modified": "2022-06-30T00:00:38Z",
  "published": "2022-06-24T00:00:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-33027"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LibreDWG/libredwg/issues/490"
    }
  ],
  "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-7C63-P383-VGQC

Vulnerability from github – Published: 2026-05-06 21:31 – Updated: 2026-05-07 01:05
VLAI
Details

Use after free in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-7922"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T19:16:40Z",
    "severity": "HIGH"
  },
  "details": "Use after free in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)",
  "id": "GHSA-7c63-p383-vgqc",
  "modified": "2026-05-07T01:05:50Z",
  "published": "2026-05-06T21:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7922"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/499449324"
    }
  ],
  "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"
    }
  ]
}

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.