CVE-2026-124908 | Mozilla Firefox up to 159 CSS Parsing/Computation use after free

November 10, 2026 Yanac

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 159. This affects an unknown part of the component CSS Parsing/Computation. The manipulation leads to use after free.

This vulnerability is documented as CVE-2026-124908. The attack can be initiated remotely. There is not any exploit available.

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