CVE-2024-4764: Mozilla Firefox

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Multiple WebRTC threads could have claimed a newly connected audio input leading to use-after-free. 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.