ghsa-h8g5-2596-xjh9
Vulnerability from github
Published
2025-03-27 15:31
Modified
2025-03-28 18:33
Severity ?
10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Details

Following the sandbox escape in CVE-2025-2783, various Firefox developers identified a similar pattern in our IPC code. Attackers were able to confuse the parent process into leaking handles to unprivileged child processes leading to a sandbox escape. The original vulnerability was being exploited in the wild. This only affects Firefox on Windows. Other operating systems are unaffected. This vulnerability affects Firefox < 136.0.4, Firefox ESR < 128.8.1, and Firefox ESR < 115.21.1.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-2857"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-27T14:15:55Z",
    "severity": "CRITICAL"
  },
  "details": "Following the sandbox escape in CVE-2025-2783, various Firefox developers identified a similar pattern in our IPC code. Attackers were able to confuse the parent process into leaking handles to unprivileged child processes leading to a sandbox escape. \nThe original vulnerability was being exploited in the wild. \n*This only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox \u003c 136.0.4, Firefox ESR \u003c 128.8.1, and Firefox ESR \u003c 115.21.1.",
  "id": "GHSA-h8g5-2596-xjh9",
  "modified": "2025-03-28T18:33:09Z",
  "published": "2025-03-27T15:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2857"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1956398"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/405143032"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-2783"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-19"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.