DevSecOps Toolkit

CVE record

CVE-2026-8973

HIGHCVSS 8.8

Memory safety bugs present in Thunderbird 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.

Vulnerability metadata

Published
2026-05-19T08:46:53.860Z
Modified
2026-05-20T12:20:51.490Z
EPSS
Not available
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References