Security Advisory

CVE-2020-26959

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2020-12-09 00:22:44
Last updated 2024-08-04 16:03:23
Assigner mozilla
State PUBLISHED

Description

During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.