JIT miscompilation in the JavaScript Engine: JIT component_CVE-2025-14330

9.8 / 10

CRITICAL

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

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

AI Analysis

JIT miscompilation vulnerability in the JavaScript Engine

Basic Information

ID CVE-2025-14330

Source mozilla

Published Dec 9, 2025 at 13:38

Modified Dec 11, 2025 at 20:38

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-686 CWE-843 CWE-119

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": "2025-12-09T13:38:05.995Z",
    "modified": "2025-12-11T20:38:25.860Z",
    "type": "cve",
    "title": "JIT miscompilation in the JavaScript Engine: JIT component",
    "source": "mozilla",
    "references": "https://bugzilla.mozilla.org/show_bug.cgi?id=1997503\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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