CVE-2026-2772: firefox: thunderbird: Use-after-free in the Audio/Video: Playback component

Severity: Critical

CVSS Score: 9.8

Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.