CVE-2026-4690 | Mozilla Firefox up to 148 XPCOM integer overflow

March 24, 2026 Yanac

A vulnerability categorized as critical has been discovered in Mozilla Firefox up to 148. Affected by this issue is some unknown functionality of the component XPCOM. Executing a manipulation can lead to integer overflow.

This vulnerability appears as CVE-2026-4690. The attack may be performed from remote. There is no available exploit.

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