CVE-2025-14324 Details
Description
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
A Just-In-Time (JIT) miscompilation vulnerability has been identified in the JavaScript engine of Mozilla Firefox. This issue affects Firefox versions prior to 146, as well as Firefox Extended Support Release (ESR) versions prior to 115.31 and prior to 140.6. The vulnerability arises from incorrect optimizations in the JIT compilation process, which could potentially be exploited to cause unexpected behavior in the JavaScript engine.
Users can upgrade to Firefox 146 or Firefox ESR 115.31 or 140.6 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Dec 11, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1996840 | [email protected] | Issue TrackingPermissions Required |
| https://www.mozilla.org/security/advisories/mfsa2025-92/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-93/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-94/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-95/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-96/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 115.31.0 < 146.0 >= 116.0, < 140.6.0 |
CPE
Remediation
| |
| mozilla thunderbird | < 140.6.0 < 146.0 |
CPE
Remediation
| |
Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Apr 13, 2026 | CVE Modified | [email protected] |
| Dec 11, 2025 | CVE Modified | CISA-ADP |
| Dec 10, 2025 | Initial Analysis | [email protected] |
| Dec 10, 2025 | CVE Modified | [email protected] |
| Dec 9, 2025 | New CVE Received | [email protected] |