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prionPRIOn knowledge basePRION:CVE-2021-23987
HistoryMar 31, 2021 - 2:15 p.m.

Memory corruption

2021-03-3114:15:00
PRIOn knowledge base
www.prio-n.com
10

8.9 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

67.8%

Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

CPENameOperatorVersion
firefoxlt87.0
firefox_esrlt78.9
thunderbirdlt78.9