Is CVE-2025-27850 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-27850 being exploited in the wild.

How severe is CVE-2025-27850?

High severity, with a CVSS score of 7.5, published 13 May 2026.

Which products and versions are affected?

Garmin EmpirBus WDU v1 1.4.6; Garmin EmpirBus WDU v2 5.0; Garmin EmpirBus Wireless Display Unit (WDU) v1 firmware 1.4.6; Garmin EmpirBus Wireless Display Unit (WDU) v2 firmware 5.0.0.

Is there a fix for CVE-2025-27850?

A patch was published on 2026-04-02: Fixed in EmpirBus WDUv2 software version 5.41 (and later version 7.00) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2025-27850 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2025-27850?

Check whether you run Garmin EmpirBus WDU v1, Garmin EmpirBus WDU v2, Garmin EmpirBus Wireless Display Unit (WDU) v1 firmware or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2025-27850: Garmin EmpirBus WDU arbitrary file disclosure via symlink attack

CVE-2025-27850 · Severity: high · CVSS 7.5 · Published 2026-05-13

A vulnerability in the Garmin EmpirBus Wireless Display Unit (WDU) allows an attacker to access sensitive files on the device. By uploading a specially crafted graphics package containing symbolic links, an attacker can trick the device's internal web server into revealing files it should not share. This could lead to the exposure of system information or configuration data from the marine display unit.

Technologies: Garmin EmpirBus WDU v1, Garmin EmpirBus WDU v2. Vendors: Garmin.

Quick answers

Is CVE-2025-27850 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-27850 being exploited in the wild.
How severe is CVE-2025-27850?: High severity, with a CVSS score of 7.5, published 13 May 2026.
Which products and versions are affected?: Garmin EmpirBus WDU v1 1.4.6; Garmin EmpirBus WDU v2 5.0; Garmin EmpirBus Wireless Display Unit (WDU) v1 firmware 1.4.6; Garmin EmpirBus Wireless Display Unit (WDU) v2 firmware 5.0.0.
Is there a fix for CVE-2025-27850?: A patch was published on 2026-04-02: Fixed in EmpirBus WDUv2 software version 5.41 (and later version 7.00) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-27850 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-27850?: Check whether you run Garmin EmpirBus WDU v1, Garmin EmpirBus WDU v2, Garmin EmpirBus Wireless Display Unit (WDU) v1 firmware or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a symlink attack (CWE-59) within the locally served web interface of the Garmin EmpirBus WDU. When a user or attacker uploads a graphics package containing symbolic links, the web server follows these links without verifying if the targets reside within the intended directory. Because there are no mechanisms to restrict link targets to a specific area of the filesystem, an unauthenticated network attacker can retrieve arbitrary files from the device. The issue affects WDU v1 version 1.4.6 and WDU v2 version 5.0.0, and was addressed in WDU v2 firmware version 5.41.

Affected products

Garmin EmpirBus Wireless Display Unit (WDU) v1 firmware 1.4.6
Garmin EmpirBus Wireless Display Unit (WDU) v2 firmware 5.0.0

Timeline

2026-04-02: patched: Fixed in EmpirBus WDUv2 software version 5.41 (and later version 7.00)
2026-05-13: disclosed: Initial CVE publication
2026-06-02: advisory: NVD analysis and CPE mapping updated

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.