Use-after-free in the WebRTC: Signaling component_CVE-2025-14321

9.8 / 10

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Use-after-free in the WebRTC: Signaling component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

AI Analysis

Use-after-free vulnerability in the WebRTC: Signaling component of Firefox and Thunderbird

Basic Information

ID CVE-2025-14321

Source mozilla

Published Dec 9, 2025 at 13:37

Modified Dec 11, 2025 at 20:36

Affected Product

Vendor Mozilla

Product Firefox

Version unspecified

Affected Versions Mozilla Firefox unspecified
Mozilla Firefox ESR unspecified
Mozilla Thunderbird unspecified
Mozilla Thunderbird unspecified

CWE Classification

CWE-416

AI Assessment

AI Score 9.8 / 10

AI Severity Critical

Vendor Mozilla

Product Firefox, Thunderbird

Version < 146, < 140.6

References

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    "published": "2025-12-09T13:37:53.872Z",
    "modified": "2025-12-11T20:36:32.290Z",
    "type": "cve",
    "title": "Use-after-free in the WebRTC: Signaling component",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=1992760\nhttps://www.mozilla.org/security/advisories/mfsa2025-92/\nhttps://www.mozilla.org/security/advisories/mfsa2025-94/\nhttps://www.mozilla.org/security/advisories/mfsa2025-95/\nhttps://www.mozilla.org/security/advisories/mfsa2025-96/",
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