CVE-2026-117981 | Mozilla Firefox up to 153.5/158 Toolkit privileges management

October 27, 2026 Yanac

A vulnerability, which was classified as critical, was found in Mozilla Firefox up to 153.5/158. This affects an unknown part of the component Toolkit. Such manipulation leads to improper privilege management.

This vulnerability is uniquely identified as CVE-2026-117981. The attack can be launched remotely. No exploit exists.

You should upgrade the affected component.VulDB Recent EntriesRead More