CVE-2026-2788: firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: GMP component

Severity: Critical

CVSS Score: 9.8

Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.