CVE-2026-117997 | Mozilla Firefox up to 153.5/158 Widget use after free

October 27, 2026 Yanac

A vulnerability was found in Mozilla Firefox up to 153.5/158. It has been declared as critical. This impacts an unknown function of the component Widget. Such manipulation leads to use after free.

This vulnerability is referenced as CVE-2026-117997. It is possible to launch the attack remotely. No exploit is available.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More