CVE-2026-4266 | WatchGuard Fireware OS up to 12.11.8/2026.1.2 Access Portal deserialization (wgsa-2026-00007 / EUVD-2026-17079)

March 30, 2026 Yanac

A vulnerability was found in WatchGuard Fireware OS up to 12.11.8/2026.1.2 and classified as critical. This impacts an unknown function of the component Access Portal. Such manipulation leads to deserialization.

This vulnerability is documented as CVE-2026-4266. The attack needs to be performed locally. There is not any exploit available.VulDB Recent EntriesRead More