Privilege Escalation Vulnerability in Firefox Graphics Component
CVE-2026-84131

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 1 September 2026

What is CVE-2026-84131?

A vulnerability has been identified in the Graphics component of Firefox, where an invalid pointer can lead to privilege escalation. This flaw potentially allows attackers to execute unauthorized actions that require elevated privileges. The issue has been addressed in updates across several Firefox versions, including Firefox 155 and various ESR releases. Users are urged to update their browsers promptly to mitigate this risk.