CVE-2025-14324

CRITICAL

Firefox < 115.31.0, 140.6-145.9, 146 - Remote Code Execution via JIT Miscompilation

Title source: llm
STIX 2.1

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.

References (6)

Core 6

Scores

CVSS v3 9.8
EPSS 0.0007
EPSS Percentile 21.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-94
Status published
Products (9)
mozilla/firefox < 115.31.0
mozilla/firefox < 146.0
Mozilla/Firefox 115.31 - 115.*
Mozilla/Firefox 140.6 - 140.*
Mozilla/Firefox 146
mozilla/thunderbird < 140.6.0
mozilla/thunderbird < 146.0
Mozilla/Thunderbird 140.6 - 140.*
Mozilla/Thunderbird 146
Published Dec 09, 2025
Tracked Since Feb 18, 2026