VULNERABILITY INTELLIGENCE

CVE-2026-12326

CVSS score8.1 HIGH
EPSS probability0.36%
CISA KEVNot currently listed
Published2026-06-16
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Memory safety bugs present in Firefox 151 and Thunderbird 151. 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 152 and Thunderbird 152.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-119
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-825

Primary references