VULNERABILITY INTELLIGENCE

CVE-2025-4092

CVSS score6.5 MEDIUM
EPSS probability0.31%
CISA KEVNot currently listed
Published2025-04-29
Last modified2026-09-30
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Description

Memory safety bugs present in Firefox 137 and Thunderbird 137. 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 138 and Thunderbird 138.

Weakness classification

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

Primary references