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prionPRIOn knowledge basePRION:CVE-2021-38504
HistoryDec 08, 2021 - 10:15 p.m.

Design/Logic Flaw

2021-12-0822:15:00
PRIOn knowledge base
www.prio-n.com
5

8.8 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.5%

When interacting with an HTML input element’s file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.