CVE-2026-6778 | Mozilla Firefox up to 149 Playback Remote Code Execution (Nessus ID 310611 / WID-SEC-2026-1228)
A vulnerability was found in Mozilla Firefox up to 149 and classified as critical. The affected element is an unknown function of the component Playback. Executing a manipulation can lead to Remote Code Execution.
The identification of this vulnerability is CVE-2026-6778. The attack may be launched remotely. There is no exploit available.
It is suggested to upgrade the affected component.