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CVE-2021-38495

HIGH CVSS: 8.8 Published: 2021-11-03 Modified: 2026-06-17

Description

Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0. 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 Thunderbird < 91.1 and Firefox ESR < 91.1.

Affected Platforms

Mozilla Firefox EsrMozilla Thunderbird

Weakness Type

CWE-787

References