The locally served web site on the Garmin WDU (v1 1.4.6 and v2 5.0) allows a cross-site origin WebSocket hijacking attack. Among other uses, the WDU utilizes WebSockets to control settings, including administrative settings. This allows a network attacker to take full control of a WDU. To initiate an exploit of this vulnerability, the victim must (1) be utilizing a web browser on a multihomed host that has local interfaces on the Garmin Marine Network as well as another network, and (2) access a malicious third party website created by the attacker.

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History

Wed, 13 May 2026 21:45:00 +0000

Type Values Removed Values Added
Title WebSocket Hijacking Exploit Enables Full Control of Garmin WDU
Weaknesses CWE-1030
CWE-307

Wed, 13 May 2026 20:30:00 +0000

Type Values Removed Values Added
Description The locally served web site on the Garmin WDU (v1 1.4.6 and v2 5.0) allows a cross-site origin WebSocket hijacking attack. Among other uses, the WDU utilizes WebSockets to control settings, including administrative settings. This allows a network attacker to take full control of a WDU. To initiate an exploit of this vulnerability, the victim must (1) be utilizing a web browser on a multihomed host that has local interfaces on the Garmin Marine Network as well as another network, and (2) access a malicious third party website created by the attacker.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-13T19:55:27.554Z

Reserved: 2025-03-09T00:00:00.000Z

Link: CVE-2025-27851

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-13T21:16:41.233

Modified: 2026-05-13T21:16:41.233

Link: CVE-2025-27851

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T21:30:04Z

Weaknesses