Vulnerability in Mozilla Firefox
CVE-2025-13018
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.
EPSS: 0.002 (12.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
Affected products
- Mozilla Firefox — versions 140.5, 145
- Mozilla Thunderbird — versions 140.5, 145
Weakness classification (CWE)
References
- security@mozilla.org (Permissions Required)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org
- security@mozilla.org
Frequently asked questions
- What is CVE-2025-13018?
- CVE-2025-13018 is a high-severity vulnerability in Mozilla Firefox, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.1/10. Published 2025-11-11.
- How severe is CVE-2025-13018?
- High severity. CVSS v3 base score is 8.1 out of 10.