CVE-2026-124939 | Mozilla Firefox up to 153.6/159 JIT memory corruption

November 10, 2026 Yanac

A vulnerability has been found in Mozilla Firefox up to 153.6/159 and classified as critical. Affected by this issue is some unknown functionality of the component JIT. The manipulation leads to memory corruption.

This vulnerability is traded as CVE-2026-124939. It is possible to initiate the attack remotely. There is no exploit available.

The affected component should be upgraded.VulDB Recent EntriesRead More