CVE-2025-15017

Published Dec 31, 2025 CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed
Description
A vulnerability exists in serial device servers where active debug code remains enabled in the UART interface. An attacker with physical access to the device can directly connect to the UART interface and, without authentication, user interaction, or execution conditions, gain unauthorized access to internal debug functionality. Exploitation is low complexity and allows an attacker to execute privileged operations and access sensitive system resources, resulting in a high impact to the confidentiality, integrity, and availability of the affected device. No security impact to external or dependent systems has been identified.

Remediation

Vendor Workaround

* For the NPort 5000 Series, make sure that the physical protection of the NPort devices and/or the system meets the security needs of your application. By limiting physical access to authorized personnel, you significantly reduce the risk of local cyberattacks. Please refer to The Security Hardening Guide for NPort 5000 Series (v2.4 or later) https://www.moxa.com/en/products/industrial-edge-connectivity/serial-device-servers/general-device-servers/nport-5100-series#resources  for more information.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description A vulnerability exists in serial device servers where active debug code remains enabled in the UART interface. An attacker with physical access to the device can directly connect to the UART interface and, without authentication, user interaction, or execution conditions, gain unauthorized access to internal debug functionality. Exploitation is low complexity and allows an attacker to execute privileged operations and access sensitive system resources, resulting in a high impact to the confidentiality, integrity, and availability of the affected device. No security impact to external or dependent systems has been identified.
First Time appeared Moxa
Moxa nport 5000ai-m12 Series
Moxa nport 5100 Series
Moxa nport 5100a Series
Moxa nport 5200 Series
Moxa nport 5200a Series
Moxa nport 5400 Series
Moxa nport 5600-dt Series
Moxa nport 5600 Series
Moxa nport Ia5000-g2 Series
Moxa nport Ia5000 Series
Moxa nport Ia5000a Series
Weaknesses CWE-489
CPEs cpe:2.3:a:moxa:nport_5000ai-m12_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_5100_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_5100a_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_5200_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_5200a_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_5400_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_5600-dt_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_5600_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_ia5000-g2_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_ia5000_series:1.0:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_ia5000a_series:1.0:*:*:*:*:*:*:*
Vendors & Products Moxa
Moxa nport 5000ai-m12 Series
Moxa nport 5100 Series
Moxa nport 5100a Series
Moxa nport 5200 Series
Moxa nport 5200a Series
Moxa nport 5400 Series
Moxa nport 5600-dt Series
Moxa nport 5600 Series
Moxa nport Ia5000-g2 Series
Moxa nport Ia5000 Series
Moxa nport Ia5000a Series
References
Metrics cvssV4_0

{'score': 7, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}