CVE-2025-13015: Mozilla Firefox

Low severity, CVSS 3.4. EPSS: 0.3% chance of exploitation in the next 30 days.

Spoofing issue in Firefox. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, and Firefox ESR 115.30.

Affected products

• Mozilla Firefox: before 115.30.0 (fixed in 115.30.0); before 145.0 (fixed in 145.0); from 140.0, before 140.5.0 (fixed in 140.5.0)

Published 2025-11-11. Last modified 2026-06-17.