EUVD-2026-67353
GHSA-6c67-gmx4-f33h
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable API endpoint but requires high-privilege admin credentials; integrity impact is low as only concurrent session config changes can be overwritten.
Primary rating from Vendor (WatchGuard).
CVSS VectorVendor: WatchGuard
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
WatchGuard Dimension exposes a server-side configuration endpoint that fails to enforce the client-side lock/unlock workflow state, allowing any authenticated read-write administrator to submit configuration changes directly to the API without completing the UI unlock step. This creates a race condition where a privileged user can silently overwrite changes being made by a second concurrent administrator session. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated WatchGuard Dimension administrator account with read-write privileges - unauthenticated access is not sufficient. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 5.1 (AV:N/AC:L/AT:N/PR:H/UI:N) accurately reflects the constrained impact of this flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the WatchGuard PSIRT advisory at https://psirt.watchguard.com/CVE-2026-78103 for patch availability and fix version details, as no specific patched release version was provided in the available intelligence. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same technique Authentication Bypass
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External POC / Exploit Code
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