Vulnerability in Mozilla Firefox
CVE-2025-0245
Under certain circumstances, a user opt-in setting that Focus should require authentication before use could have been be bypassed. This vulnerability was fixed in Firefox 134.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (19.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
- Mozilla Firefox — versions 134
Public proof-of-concept exploits
References
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
- www.mozilla.org/security/advisories/mfsa2025-01/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-0245?
- CVE-2025-0245 is a low-severity vulnerability in Mozilla Firefox. CVSS score: 3.3/10. Published 2025-01-07.
- How severe is CVE-2025-0245?
- Low severity. CVSS v3 base score is 3.3 out of 10.
- Is CVE-2025-0245 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.