High severity · published May 13, 2026
CVE-2025-27853
The locally served web site on the Garmin WDU (v1 1.4.6 and v2 5.0) allows its authentication to be bypassed
7.3
CVSS
0.3%
EPSS
No
On KEV
Description
The locally served web site on the Garmin WDU (v1 1.4.6 and v2 5.0) allows its authentication to be bypassed. The WDU web site only performs authentication with the client within the client's browser. The WebSockets used to communicate with the WDU server do not enforce any authentication. An attacker may bypass all authentication mechanisms by directly utilizing the remote APIs available on the websocket.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EW
Empirbus Wireless Display Unit Firmware · Garmin
1.4.6; 5.00 · source: NVD
Affected product
EW
Empirbus Wireless Display Unit Firmware
Garmin
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-27853
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-27853
Product
https://garmin.com
Release Notes
https://www8.garmin.com/support/ch.jsp?product=010-02642-00
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