Privilege Escalation in Firefox Session Restore Component by Mozilla

CVE-2026-92062

What is CVE-2026-92062?

A privilege escalation vulnerability exists in the Session Restore component of Mozilla Firefox, allowing unauthenticated users to gain elevated privileges. This issue has been addressed in Firefox version 156 and Firefox Extended Support Release (ESR) 153.3, enhancing user security by mitigating potential exploitation avenues that could compromise sensitive user data or system integrity.

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