Security Advisory

CVE-2021-29964

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-06-24 13:15:35

Last updated 2024-08-03 22:24:57

Assigner mozilla

State PUBLISHED

Description

A locally-installed hostile program could send `WM_COPYDATA` messages that Firefox would process incorrectly, leading to an out-of-bounds read. *This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 78.11, Firefox < 89, and Firefox ESR < 78.11.

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