CVE-2026-4690 | Mozilla Firefox up to 148 XPCOM integer overflow (Nessus ID 303470)
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.