High 1 vendor · 1 advisory

CVE-2026-4266

Unified cross-vendor view: this CVE is referenced by 1 tracked vendor. Each vendor rates and fixes it independently — confirm the impact for your specific products below.

NVD detail CVE.org

WatchGuard1 advisory

High8.4Insecure Deserialization vulnerability in WatchGuard Fireware OS allows an attacker that has obtained write access to the lo…Mar 30, 2026

CVE-2026-4266 — high severity, 1 vendor affected · VulniPulse