VULNERABILITY INTELLIGENCE

CVE-2026-0892

CVSS score9.8 CRITICAL
EPSS probability0.45%
CISA KEVNot currently listed
Published2026-01-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Memory safety bugs present in Firefox 146 and Thunderbird 146. 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 147 and Thunderbird 147.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-119

Primary references