Common Weakness Enumeration

CWE-825

Allowed

Expired Pointer Dereference

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.

105 vulnerabilities reference this CWE, most recent first.

GHSA-PQXF-3WQ6-69F8

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-06-30 03:36
VLAI
Details

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

wifi: mac80211: use safe list iteration in radar detect work

The call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to be freed and removed from the list. Guard against this to avoid a slab-use-after-free error.

Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-46166"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416",
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:32Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: use safe list iteration in radar detect work\n\nThe call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to\nbe freed and removed from the list. Guard against this to avoid a\nslab-use-after-free error.",
  "id": "GHSA-pqxf-3wq6-69f8",
  "modified": "2026-06-30T03:36:52Z",
  "published": "2026-05-28T12:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46166"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27288"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27708"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27789"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33215"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46166"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482645"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686dde"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7577a4b8a10fab45a6ee2045ea038a5adadbb585"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/887ece6c23b49d02a6678e7a8d5ad213d75883ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ac8eb3e18f41e2cc8492cc1d358bcb786c850270"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46166.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-Q6V9-43V5-JV9Q

Vulnerability from github – Published: 2026-06-19 20:46 – Updated: 2026-06-19 20:46
VLAI
Summary
CoreWCF: UnixDomainSocket Non-Reentrant POSIX Identity Resolution
Details

Impact

Race condition in POSIX peer identity resolution may attribute one connection’s identity to another (getpwuid/getgrgid non-reentrant) and may crash the host process under contention.

Patches

Fixed in CoreWCF v1.8.1 and v1.9.1

Workarounds

Restrict UDS filesystem permissions so that only trusted local users can connect to the socket path. The race still exists but the attacker pool is constrained.

Severity
6.2 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "CoreWCF.UnixDomainSocket"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "CoreWCF.UnixDomainSocket"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.9.0"
            },
            {
              "fixed": "1.9.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54778"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362",
      "CWE-825"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-19T20:46:58Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\nRace condition in POSIX peer identity resolution may attribute one connection\u2019s identity to another (getpwuid/getgrgid non-reentrant) and may crash the host process under contention.\n\n### Patches\nFixed in CoreWCF v1.8.1 and v1.9.1\n\n### Workarounds\nRestrict UDS filesystem permissions so that only trusted local users can connect to the socket path. The race still exists but the attacker pool is constrained.",
  "id": "GHSA-q6v9-43v5-jv9q",
  "modified": "2026-06-19T20:46:58Z",
  "published": "2026-06-19T20:46:58Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-q6v9-43v5-jv9q"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/CoreWCF/CoreWCF"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "CoreWCF: UnixDomainSocket Non-Reentrant POSIX Identity Resolution"
}

GHSA-QG4C-8PJ4-QGW2

Vulnerability from github – Published: 2025-06-16 18:32 – Updated: 2026-06-02 15:31
VLAI
Details

A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.

Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-49794"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-16T16:15:18Z",
    "severity": "CRITICAL"
  },
  "details": "A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the \u003csch:name path=\"...\"/\u003e schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program\u0027s crash using libxml or other possible undefined behaviors.",
  "id": "GHSA-qg4c-8pj4-qgw2",
  "modified": "2026-06-02T15:31:49Z",
  "published": "2025-06-16T18:32:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49794"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:10630"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:18219"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:18240"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:19020"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:19041"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:19046"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:19894"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:21913"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:0934"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7519"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-49794"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2372373"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-577017.html"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/931"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00014.html"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:10698"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:10699"
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      "url": "https://access.redhat.com/errata/RHSA-2025:11580"
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12099"
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      "url": "https://access.redhat.com/errata/RHSA-2025:12199"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12237"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12239"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12240"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12241"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:13335"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:15397"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:15827"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:15828"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:18217"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:18218"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-R37M-3HW5-974W

Vulnerability from github – Published: 2026-04-21 15:32 – Updated: 2026-06-30 03:36
VLAI
Details

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-6746"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416",
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-21T13:16:20Z",
    "severity": "HIGH"
  },
  "details": "Use-after-free in the DOM: Core \u0026 HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.",
  "id": "GHSA-r37m-3hw5-974w",
  "modified": "2026-06-30T03:36:19Z",
  "published": "2026-04-21T15:32:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6746"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:10757"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19465"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19466"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19467"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19468"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19469"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19542"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19655"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19704"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-6746"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2014596"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460112"
    },
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      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6746.json"
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      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-30"
    },
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      "url": "https://www.mozilla.org/security/advisories/mfsa2026-33"
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19462"
    },
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      "type": "WEB",
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    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19464"
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  "schema_version": "1.4.0",
  "severity": [
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}

GHSA-R6F8-X3MW-2QP5

Vulnerability from github – Published: 2025-11-18 21:32 – Updated: 2026-05-19 18:32
VLAI
Details

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the net_set_vlan command is not properly unregistered when the network module is unloaded from memory. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability

Severity
4.9 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-54770"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-18T19:15:49Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability has been identified in the GRUB2 bootloader\u0027s network module that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the net_set_vlan command is not properly unregistered when the network module is unloaded from memory. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability",
  "id": "GHSA-r6f8-x3mw-2qp5",
  "modified": "2026-05-19T18:32:01Z",
  "published": "2025-11-18T21:32:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54770"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-54770"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2413813"
    },
    {
      "type": "WEB",
      "url": "https://lists.gnu.org/archive/html/grub-devel/2025-11/msg00155.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/11/18/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-R8G9-GM9P-FF4H

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-07-02 12:30
VLAI
Details

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

RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init()

mlx5_ib_dev_res_srq_init() allocates two SRQs, s0 and s1. When ib_create_srq() fails for s1, the error branch destroys s0 but falls through and unconditionally assigns the freed s0 and the ERR_PTR s1 to devr->s0 and devr->s1.

This leads to several problems: the lock-free fast path checks "if (devr->s1) return 0;" and treats the ERR_PTR as already initialised; users in mlx5_ib_create_qp() dereference the freed SRQ or ERR_PTR via to_msrq(devr->s0)->msrq.srqn; and mlx5_ib_dev_res_cleanup() dereferences the ERR_PTR and double-frees s0 on teardown.

Fix by adding the same goto unlock in the s1 failure path.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-46176"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:33Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init()\n\nmlx5_ib_dev_res_srq_init() allocates two SRQs, s0 and s1. When\nib_create_srq() fails for s1, the error branch destroys s0 but falls\nthrough and unconditionally assigns the freed s0 and the ERR_PTR s1 to\ndevr-\u003es0 and devr-\u003es1.\n\nThis leads to several problems: the lock-free fast path checks\n\"if (devr-\u003es1) return 0;\" and treats the ERR_PTR as already initialised;\nusers in mlx5_ib_create_qp() dereference the freed SRQ or ERR_PTR via\nto_msrq(devr-\u003es0)-\u003emsrq.srqn; and mlx5_ib_dev_res_cleanup() dereferences\nthe ERR_PTR and double-frees s0 on teardown.\n\nFix by adding the same `goto unlock` in the s1 failure path.",
  "id": "GHSA-r8g9-gm9p-ff4h",
  "modified": "2026-07-02T12:30:48Z",
  "published": "2026-05-28T12:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46176"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:30848"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33215"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33685"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:34094"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46176"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482594"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fd93142dd1d09000c3750af08270f5792523fe9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a13c2ac4d480b734342c6fbf8249fc48afd675f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b087913ae88256df66620f7ba0a9776716aeef7e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc2cf5935b4665172235341163315905197ae91d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c488df06bd552bb8b6e14fa0cfd5ad986c6e9525"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46176.json"
    }
  ],
  "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-V4HW-Q98X-8JMM

Vulnerability from github – Published: 2026-06-24 09:30 – Updated: 2026-06-30 03:37
VLAI
Details

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

sctp: purge outqueue on stale COOKIE-ECHO handling

sctp_stream_update() is only invoked when the association is moved into COOKIE_WAIT during association setup/reconfiguration. In this path, the outbound stream scheduler state (stream->out_curr) is expected to be clean, since no user data should have been transmitted yet unless the state machine has already partially progressed.

However, a corner case exists in sctp_sf_do_5_2_6_stale(): when a Stale Cookie ERROR is received, the association is rolled back from COOKIE_ECHOED to COOKIE_WAIT. In this scenario, user data may already have been queued and even bundled with the COOKIE-ECHO chunk.

During the rollback, sctp_stream_update() frees the old stream table and installs a new one, but it does not invalidate stream->out_curr. As a result, out_curr may still point to a freed sctp_stream_out entry from the previous stream state.

Later, SCTP scheduler dequeue paths (FCFS, RR, PRIO, etc.) rely on stream->out_curr->ext, which can lead to use-after-free once the old stream state has been released via sctp_stream_free().

This results in crashes such as (reported by Yuqi):

BUG: KASAN: slab-use-after-free in sctp_sched_fcfs_dequeue+0x13a/0x140 Read of size 8 at addr ff1100004d4d3208 by task mini_poc/9312 CPU: 1 UID: 1001 PID: 9312 Comm: mini_poc Not tainted 7.1.0-rc1-00305-gbd3a4795d574 #5 PREEMPT(full) sctp_sched_fcfs_dequeue+0x13a/0x140 sctp_outq_flush+0x1603/0x33e0 sctp_do_sm+0x31c9/0x5d30 sctp_assoc_bh_rcv+0x392/0x6f0 sctp_inq_push+0x1db/0x270 sctp_rcv+0x138d/0x3c10

Fix this by fully purging the association outqueue when handling the Stale Cookie case. This ensures all pending transmit and retransmit state is dropped, and any scheduler cached pointers are invalidated, making it safe to rebuild stream state during COOKIE_WAIT restart.

Updating only stream->out_curr would be insufficient, since queued and retransmittable data would still reference the old stream state and trigger later use-after-free in dequeue paths.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-52924"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416",
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T08:16:22Z",
    "severity": "CRITICAL"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: purge outqueue on stale COOKIE-ECHO handling\n\nsctp_stream_update() is only invoked when the association is moved into\nCOOKIE_WAIT during association setup/reconfiguration. In this path, the\noutbound stream scheduler state (stream-\u003eout_curr) is expected to be\nclean, since no user data should have been transmitted yet unless the\nstate machine has already partially progressed.\n\nHowever, a corner case exists in sctp_sf_do_5_2_6_stale(): when a\nStale Cookie ERROR is received, the association is rolled back from\nCOOKIE_ECHOED to COOKIE_WAIT. In this scenario, user data may already\nhave been queued and even bundled with the COOKIE-ECHO chunk.\n\nDuring the rollback, sctp_stream_update() frees the old stream table\nand installs a new one, but it does not invalidate stream-\u003eout_curr.\nAs a result, out_curr may still point to a freed sctp_stream_out\nentry from the previous stream state.\n\nLater, SCTP scheduler dequeue paths (FCFS, RR, PRIO, etc.) rely on\nstream-\u003eout_curr-\u003eext, which can lead to use-after-free once the old\nstream state has been released via sctp_stream_free().\n\nThis results in crashes such as (reported by Yuqi):\n\n  BUG: KASAN: slab-use-after-free in sctp_sched_fcfs_dequeue+0x13a/0x140\n  Read of size 8 at addr ff1100004d4d3208 by task mini_poc/9312\n  CPU: 1 UID: 1001 PID: 9312 Comm: mini_poc Not tainted\n     7.1.0-rc1-00305-gbd3a4795d574 #5 PREEMPT(full)\n   sctp_sched_fcfs_dequeue+0x13a/0x140\n   sctp_outq_flush+0x1603/0x33e0\n   sctp_do_sm+0x31c9/0x5d30\n   sctp_assoc_bh_rcv+0x392/0x6f0\n   sctp_inq_push+0x1db/0x270\n   sctp_rcv+0x138d/0x3c10\n\nFix this by fully purging the association outqueue when handling the\nStale Cookie case. This ensures all pending transmit and retransmit\nstate is dropped, and any scheduler cached pointers are invalidated,\nmaking it safe to rebuild stream state during COOKIE_WAIT restart.\n\nUpdating only stream-\u003eout_curr would be insufficient, since queued\nand retransmittable data would still reference the old stream state and\ntrigger later use-after-free in dequeue paths.",
  "id": "GHSA-v4hw-q98x-8jmm",
  "modified": "2026-06-30T03:37:10Z",
  "published": "2026-06-24T09:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52924"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-52924"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492095"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d4652f677906a64487c13f9ace54b0eb263b5d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2afc9e684dc7fecf73db1edc937ebbc47b4b68dc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c0741a441a7df7099d7ca6a64a6a0de09c677c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83ade59e5da365f4bf8bce72c5a38774202b442f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84b7a319105db2f917ccdcf502bdc866082b1285"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6207349e703cfc04756a4d16dec9176135813a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e374b22e9b07b72a25909621464ff74096151bfb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f46e1d1a758878f0d22c4fbbd1bf42bb7165d1e8"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52924.json"
    }
  ],
  "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-VXCH-4R45-JHW9

Vulnerability from github – Published: 2026-04-20 18:31 – Updated: 2026-04-21 21:31
VLAI
Details

A stack-use-after-return issue exists in the Arduino_Core_STM32 library prior to version 1.7.0. The pwm_start() function allocates a TIM_HandleTypeDef structure on the stack and passes its address to HAL initialization routines, where it is stored in a global timer handle registry. After the function returns, interrupt service routines may dereference this dangling pointer, resulting in memory corruption.

Severity
5.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-26399"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-562",
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-20T18:16:25Z",
    "severity": "MODERATE"
  },
  "details": "A stack-use-after-return issue exists in the Arduino_Core_STM32 library prior to version 1.7.0. The pwm_start() function allocates a TIM_HandleTypeDef structure on the stack and passes its address to HAL initialization routines, where it is stored in a global timer handle registry. After the function returns, interrupt service routines may dereference this dangling pointer, resulting in memory corruption.",
  "id": "GHSA-vxch-4r45-jhw9",
  "modified": "2026-04-21T21:31:20Z",
  "published": "2026-04-20T18:31:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26399"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Acen28/CVE-2026-26399-Disclosure"
    },
    {
      "type": "WEB",
      "url": "https://github.com/stm32duino/Arduino_Core_STM32/releases/tag/1.6.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WPFW-5XVC-WQ9W

Vulnerability from github – Published: 2026-03-26 21:31 – Updated: 2026-03-26 21:31
VLAI
Details

A flaw was found in libsoup's SoupServer. A remote attacker could exploit a use-after-free vulnerability where the soup_server_disconnect() function frees connection objects prematurely, even if a TLS handshake is still pending. If the handshake completes after the connection object has been freed, a dangling pointer is accessed, leading to a server crash and a Denial of Service.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-2436"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-26T20:16:11Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in libsoup\u0027s SoupServer. A remote attacker could exploit a use-after-free vulnerability where the `soup_server_disconnect()` function frees connection objects prematurely, even if a TLS handshake is still pending. If the handshake completes after the connection object has been freed, a dangling pointer is accessed, leading to a server crash and a Denial of Service.",
  "id": "GHSA-wpfw-5xvc-wq9w",
  "modified": "2026-03-26T21:31:26Z",
  "published": "2026-03-26T21:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2436"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-2436"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442909"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/501"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WVR4-56PF-CC47

Vulnerability from github – Published: 2026-04-21 15:32 – Updated: 2026-06-30 03:36
VLAI
Details

Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-6747"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416",
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-21T13:16:20Z",
    "severity": "HIGH"
  },
  "details": "Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.",
  "id": "GHSA-wvr4-56pf-cc47",
  "modified": "2026-06-30T03:36:19Z",
  "published": "2026-04-21T15:32:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6747"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19464"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19465"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19466"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19467"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19468"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19469"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19542"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19655"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19704"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-6747"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2021769"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460095"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6747.json"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-30"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-32"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-33"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-34"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:10757"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:10766"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:10767"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:12285"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:13537"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:15892"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:17477"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:17687"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:17688"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:17689"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:17690"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19041"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19131"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19201"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19348"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19461"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19462"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:19463"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}
Mitigation
Architecture and Design

Choose a language that provides automatic memory management.

Mitigation
Implementation

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.

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