Security Advisory

CVE-2026-2777

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-02-24 13:33:12

Last updated 2026-02-26 14:44:09

Assigner mozilla

State PUBLISHED

Description

Privilege escalation in the Messaging System component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.

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