CVE-2026-109721 | Mozilla Firefox up to 153.4/157 JIT out-of-bounds

October 13, 2026 Yanac

A vulnerability classified as critical was found in Mozilla Firefox up to 153.4/157. This issue affects some unknown processing of the component JIT. The manipulation results in out-of-bounds read.

This vulnerability is cataloged as CVE-2026-109721. The attack may be launched remotely. There is no exploit available.

Upgrading the affected component is advised.VulDB Recent EntriesRead More