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CVE-2026-8973

Thunderbird

Description

Memory safety bugs present in Firefox 150. 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 was fixed in Firefox 151 and Thunderbird 151.

CVSS 8.8EPSS 0.335%Risk 0.91
View source
Published
2026-05-19 14:16:53
Affected versions
<151
Type
Core software
Last modified
2026-07-23 20:10:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H