CVE-2024-4776: Mozilla Firefox

High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days.

A file dialog shown while in full-screen mode could have resulted in the window remaining disabled. This vulnerability affects Firefox < 126.

Affected products

• Mozilla Firefox: before 126.0 (fixed in 126.0)

Published 2024-05-14. Last modified 2026-06-17.