CVE-2026-117979 | Mozilla Firefox up to 115.43/153.5/158 WebRender integer overflow

October 27, 2026 Yanac

A vulnerability classified as critical was found in Mozilla Firefox up to 115.43/153.5/158. Affected by this vulnerability is an unknown functionality of the component WebRender. The manipulation results in integer overflow.

This vulnerability is known as CVE-2026-117979. It is possible to launch the attack remotely. No exploit is available.

Upgrading the affected component is advised.VulDB Recent EntriesRead More