Dormakaba registration unit 9002 prior SW0039 UART Interface debug messages revealing unnecessary information

Summaryinfo

A vulnerability, which was classified as problematic, was found in Dormakaba registration unit 9002. This vulnerability affects unknown code of the component UART Interface. Executing a manipulation can lead to debug messages revealing unnecessary information. This vulnerability is tracked as CVE-2025-59109. The physical device can be targeted for the attack. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Dormakaba registration unit 9002. It has been declared as problematic. This vulnerability affects some unknown functionality of the component UART Interface. The manipulation with an unknown input leads to a debug messages revealing unnecessary information vulnerability. The CWE definition for the vulnerability is CWE-1295. The product fails to adequately prevent the revealing of unnecessary and potentially sensitive system information within debugging messages. As an impact it is known to affect confidentiality. CVE summarizes:

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).

The weakness was disclosed by Clemens Stockenreitner and Werner Schober. The advisory is available at r.sec-consult.com. This vulnerability was named CVE-2025-59109 since 09/09/2025. The exploitation appears to be easy. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version SW0039 eliminates this vulnerability.

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Productinfo

Vendor

• Dormakaba

Name

• registration unit 9002

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CPE 2.2info

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