Firebox and Fireware OS
CVE-2026-78103: Dimension Log Server Configuration Lock Bypass Vulnerability
WatchGuard Dimension provides a client-side lock/unlock UI control for management changes.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Dimension 2.0 | 2.3.1 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Exploitation
WatchGuard is not aware of any exploitation of this vulnerability in the wild.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.