CVE-2026-12311 | Mozilla Firefox up to 140.11/151 Process Sandboxing sandbox

June 16, 2026 Yanac

A vulnerability was found in Mozilla Firefox up to 140.11/151. It has been rated as critical. Affected is an unknown function of the component Process Sandboxing. The manipulation leads to sandbox issue.

This vulnerability is referenced as CVE-2026-12311. Remote exploitation of the attack is possible. No exploit is available.

Upgrading the affected component is advised.VulDB Recent EntriesRead More