How severe is CVE-2025-59109?

CVE-2025-59109 has a CVSS 4.0 base score of 5.1, rated medium severity.

Is CVE-2025-59109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-59109?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-59109 have an EU (EUVD) identifier?

Yes. CVE-2025-59109 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206377.

When was CVE-2025-59109 published?

CVE-2025-59109 was published on 2026-01-26 and last updated on 2026-06-17.

CVE-2025-59109

CVE-2025-59109 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1295.

Key facts

Severity: Medium (CVSS 4.0 base score 5.1)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206377
Weakness: CWE-1295
Published: 2026-01-26
Last modified: 2026-06-17

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).

Frequently asked questions

What is CVE-2025-59109?: 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).
How severe is CVE-2025-59109?: CVE-2025-59109 has a CVSS 4.0 base score of 5.1, rated medium severity.
Is CVE-2025-59109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-59109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-59109 have an EU (EUVD) identifier?: Yes. CVE-2025-59109 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206377.
When was CVE-2025-59109 published?: CVE-2025-59109 was published on 2026-01-26 and last updated on 2026-06-17.

References

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