CVE-2025-1941: Mozilla Firefox

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Under certain circumstances, a user opt-in setting that Focus should require authentication before use could have been be bypassed (distinct from CVE-2025-0245). This vulnerability was fixed in Firefox 136.

Affected products

• Mozilla Firefox: before 136.0 (fixed in 136.0)

Published 2025-03-04. Last modified 2026-10-05.