Security Advisory

CVE-2021-4129

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2022-12-22 00:00:00
Last updated 2025-04-16 15:56:28
Assigner mozilla
State PUBLISHED

Description

Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Firefox 94. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 95, Firefox ESR < 91.4.0, and Thunderbird < 91.4.0.