Vulnerability Description
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 140.6.0 |
| Mozilla | Thunderbird | < 140.6.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1997503Issue TrackingPermissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-92/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-94/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-95/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-96/Vendor Advisory
FAQ
What is CVE-2025-14330?
CVE-2025-14330 is a vulnerability with a CVSS score of 9.8 (CRITICAL). JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
How severe is CVE-2025-14330?
CVE-2025-14330 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-14330?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Thunderbird.