Vulnerability · Published Jan 26, 2026 · Assigned by SEC-VLab
CVE-2025-59109UART Leaking Sensitive Data in dormakaba registration unit 9002
Medium 5.1
In plain English
A medium-severity security flaw in dormakaba registration unit 9002 from dormakaba. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).
Official 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).
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| dormakaba | dormakaba registration unit 9002 | <SW0039 |
Weakness: CWE-1295 · 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
References
- https://r.sec-consult.com/dormakaba technical-description
- https://r.sec-consult.com/dkaccess third-party-advisory
- https://www.dormakabagroup.com/en/security-advisories vendor-advisory
- http://seclists.org/fulldisclosure/2026/Jan/24