[CVE-2026-12296] Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefo…

Descripción técnica

Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Puntuación CVSS

Score: 9.6/10 — Severidad: CRITICAL — Estado NIST: Modified

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Productos afectados

Firefox, Thunderbird — Mozilla

Debilidades (CWE)

CWE-693, CWE-403

Fuente oficial

Publicado en NIST NVD.