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prionPRIOn knowledge basePRION:CVE-2021-29964
HistoryJun 24, 2021 - 2:15 p.m.

Out-of-bounds

2021-06-2414:15:00
PRIOn knowledge base
www.prio-n.com
8

6.6 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

34.4%

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.