CVE-2025-0626

Summary

The "monitor" binary in the firmware of the affected product attempts to mount to a hard-coded, routable IP address, bypassing existing device network settings to do so. The function also enables the network interface of the device if it is disabled. The function is triggered by attempting to update the device from the user menu. This could serve as a backdoor to the device, and could lead to a malicious actor being able to upload and overwrite files on the device.

Affected Software

Weaknesses

• CWE-912: CWE-912 Hidden Functionality

Workarounds

Per FDA recommendation, CISA recommends users remove any Contec CMS8000 devices from their networks.

If asset owners cannot remove the devices from their networks, users should block 202.114.4.0/24 from their networks, or block 202.114.4.119 and 202.114.4.120.

Please note that this device may be re-labeled and sold by resellers. For a list of known re-labeled devices, please refer to FDA's safety communication https://www.fda.gov/medical-devices/safety-communications/cybersecurity-vulnerabilities-certain-patient-monitors-contec-and-epsimed-fda-safety-communication .

ADP Enrichment

CVE Program Container

Additional References

• https://www.cisa.gov/resources-tools/resources/contec-cms8000-contains-backdoor
• https://www.fda.gov/medical-devices/safety-communications/cybersecurity-vulnerabilities-certain-patient-monitors-contec-and-epsimed-fda-safety-communication
• https://www.bleepingcomputer.com/news/security/backdoor-found-in-two-healthcare-patient-monitors-linked-to-ip-in-china/

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-030-01
• https://www.fda.gov/medical-devices/safety-communications/cybersecurity-vulnerabilities-certain-patient-monitors-contec-and-epsimed-fda-safety-communication

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