CVE-2026-124943 | Mozilla Firefox up to 159 Layout use after free

A vulnerability categorized as critical has been discovered in Mozilla Firefox up to 159. Affected by this issue is some unknown functionality of the component Layout. Such manipulation leads to use after free.

This vulnerability is uniquely identified as CVE-2026-124943. The attack can be launched remotely. No exploit exists.

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