CVE-2025-59109

UART Leaking Sensitive Data in dormakaba registration unit 9002

Published Jan 26, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Description
The dormakaba registration units 9002 (PIN Pad Units) have an exposed UART header on the backside. The PIN pad is sending every button press to the UART interface. An attacker can use the interface to exfiltrate PINs. As the devices are explicitly built as Plug-and-Play to be easily replaced, an attacker is easily able to remove the device, install a hardware implant which connects to the UART and exfiltrates the data exposed via UART to another system (e.g. via WiFi).

Remediation

Vendor Solution

If the 9002 is installed in an insecure location, it could be manipulated. Hardware access and special equipment is needed to exploit this vulnerability. Also, the manipulated device would need to be reinstalled. To mitigate this vulnerability for 9002 in insecure locations, a newer version of the 9002 (Serial number starts with: 0700039…) could be installed. Important: The version of the installed 9002 can only be checked on-site.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Dormakaba
Dormakaba registration Unit 9002
Vendors & Products Dormakaba
Dormakaba registration Unit 9002
Type Values Removed Values Added
Description The dormakaba registration units 9002 (PIN Pad Units) have an exposed UART header on the backside. The PIN pad is sending every button press to the UART interface. An attacker can use the interface to exfiltrate PINs. As the devices are explicitly built as Plug-and-Play to be easily replaced, an attacker is easily able to remove the device, install a hardware implant which connects to the UART and exfiltrates the data exposed via UART to another system (e.g. via WiFi).
Title UART Leaking Sensitive Data in dormakaba registration unit 9002
Weaknesses CWE-1295
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
SEC-VLab
Published
Updated
Mar 3, 2026, 6:11 PM
Reserved
Sep 9, 2025, 7:53 AM
Status
Deferred
Published
Jan 26, 2026, 10:16 AM
Modified
Jun 17, 2026, 9:45 AM