CVE-2026-4266 in WatchGuard Fireware OS
Résumé (Anglaise)
An Insecure Deserialization vulnerability in WatchGuard Fireware OS allows an attacker that has obtained write access to the local filesystem through another vulnerability to execute arbitrary code in the context of the portald user.This issue affects Fireware OS: 12.1 through 12.11.8 and 2025.1 through 2026.1.2. Note, this vulnerability does not affect Firebox platforms that do not support the Access Portal feature, including the T-15 and T-35.
Responsable
WatchGuard
Réserver
16/03/2026
Divulgation
30/03/2026
Entrées
| ID | Vulnérabilité | CWE | Base | Temp | 0day | Aujourd'hui | Exp | KEV | EPSS | CTI | Con | CVE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 354177 | WatchGuard Fireware OS Access Portal élévation de privilèges | 502 | 6.7 | 6.7 | $0-$5k | $0-$5k | Non défini | 0.00000 | 2.85+ | Non défini | CVE-2026-4266 |