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CVE-2026-8389

8.8 high exploit SSVC exploitation: poc Modified
NVD · CVE.org

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.

Fix

Public exploits 1

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 8.8 · mozillaNVD modified 2026-10-26 18:10

Affected (CPE criteria) 1

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

References 6