CVE-2026-78103: WatchGuard Dimension

Medium severity, CVSS 5.1. EPSS: 0.5% chance of exploitation in the next 30 days.

WatchGuard Dimension provides a client-side lock/unlock UI control for management changes. The server-side configuration endpoint does not enforce this lock/unlock workflow state, allowing an authenticated administrator to submit configuration changes directly to the endpoint without first completing the UI unlock step. This allows an authenticated read-write administrator session to bypass the intended editing workflow and overwrite configuration changes being made by another concurrent administrator session.

Affected products

• WatchGuard Dimension: from 2.0, before 2.3.1 (fixed in 2.3.1)

Published 2026-08-28. Last modified 2026-08-28.