VULNERABILITY INTELLIGENCE

CVE-2026-12290

CVSS score8.1 HIGH
EPSS probability0.40%
CISA KEVNot currently listed
Published2026-06-16
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Description

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-119
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-823

Primary references