CVE-2025-27851_CVE-2025-27851

9.3 / 10

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

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.

Basic Information

ID CVE-2025-27851

Source mitre

Published May 13, 2026 at 00:00

Modified May 14, 2026 at 15:35

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-352

References

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    "published": "2026-05-13T00:00:00.000Z",
    "modified": "2026-05-14T15:35:05.024Z",
    "type": "cve",
    "title": "CVE-2025-27851",
    "source": "mitre",
    "references": "https://garmin.com\nhttps://www8.garmin.com/support/ch.jsp?product=010-02642-00",
    "id": "CVE-2025-27851",
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    "cvss": {
        "score": 9.3,
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        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
        "version": "3.1"
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        "cvssV3": {
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    "category_name": "CVE",
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}