CVE-2026-84122 | Mozilla Firefox up to 140.14/153.1/154 Audio/Video use after free (Nessus ID 342446 / WID-SEC-2026-3132)
A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 140.14/153.1/154. The affected element is an unknown function of the component Audio/Video. The manipulation leads to use after free.
This vulnerability is documented as CVE-2026-84122. The attack can be initiated remotely. There is not any exploit available.
It is advisable to upgrade the affected component.