CVE-2026-100776 | Mozilla Firefox up to 140.16/153.3/156 WebAssembly use after free (Nessus ID 365293 / WID-SEC-2026-3654)
A vulnerability described as critical has been identified in Mozilla Firefox up to 140.16/153.3/156. Affected by this issue is some unknown functionality of the component WebAssembly. Executing a manipulation can lead to use after free.
This vulnerability is handled as CVE-2026-100776. The attack can be executed remotely. There is not any exploit available.
Upgrading the affected component is recommended.