What’s Vulnerable › Vulnerabilities

CVE-2025-59109: UART Leaking Sensitive Data in dormakaba registration unit 9002

• Severity: medium (CVSS 5.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-26 · updated 2026-06-17
• Weakness: CWE-1295

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

• dormakaba registration unit 9002: before SW0039

References

• https://r.sec-consult.com/dkaccess
• https://r.sec-consult.com/dormakaba
• https://www.dormakabagroup.com/en/security-advisories
• http://seclists.org/fulldisclosure/2026/Jan/24

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