Vulnerability in Mozilla Firefox
CVE-2025-1941
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.
EPSS: 0.003 (26.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Mozilla Firefox — versions 136
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@mozilla.org (Issue Tracking)
- security@mozilla.org (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-1941?
- CVE-2025-1941 is a critical-severity vulnerability in Mozilla Firefox, classified under Improper Access Control. CVSS score: 9.1/10. Published 2025-03-04.
- How severe is CVE-2025-1941?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2025-1941 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.