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CVE-2025-27851

Garmin Empirbus Wireless Display Unit Firmware cross-site request forgery (CSRF)

9.3 CRITICALEPSS 0.14%
  1. Published13 May 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Affected products

Garmin Empirbus Wireless Display Unit Firmware1.4.6 · 5.00

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-27851 being actively exploited?

CVE-2025-27851 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.14%.

How severe is CVE-2025-27851?

CVE-2025-27851 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 0.14% probability of exploitation.

Which products are affected by CVE-2025-27851?

Affected products include Garmin Empirbus Wireless Display Unit Firmware.

How do I fix CVE-2025-27851?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-27851 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.