CVE-2025-10290: Mozilla Firefox Focus

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Opening links via the contextual menu in Focus iOS for certain URL schemes would fail to load but would not refresh the toolbar correctly, allowing attackers to spoof websites if users were coerced into opening a link explicitly through a long-press. This vulnerability was fixed in Focus for iOS 143.0.

Affected products

• Mozilla Firefox Focus: before 143.0 (fixed in 143.0)

Published 2025-09-16. Last modified 2026-06-17.