CVE-2026-78103

Medium

Description

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.

SeverityMedium

CVSS5.1

Exploit probability—

ProductDimension

PublishedAug 28, 2026

First seenAug 28, 2026

Weakness typeCWE-841CWE-841

How to fix

Update

WatchGuard Dimension2.3.1 or later

Vendor advisories

psirt.watchguard.com/CVE-2026-78103

Affected products

Product	Affected versions	Fixed in
WatchGuard Dimension	2.0 ≤ v < 2.3.1	2.3.1

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