CVE-2025-0626

HIGH EXPLOITED

Contec CMS8000 Patient Monitor Firmware - Hardcoded IP Backdoor File Overwrite

Title source: manual

Exploitation Summary

CVE-2025-0626 has been observed exploited in the wild (reported by VulnCheck KEV).

Description

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.

References (4)

Core 4

Core References

Various Sources

https://www.fda.gov/medical-devices/safety-communications/cybersecurity-vulnerabilities-certain-patient-monitors-contec-and-epsimed-fda-safety-communication

Various Sources

https://www.bleepingcomputer.com/news/security/backdoor-found-in-two-healthcare-patient-monitors-linked-to-ip-in-china/

Third Party Advisory, US Government Resource

https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-030-01

Third Party Advisory, US Government Resource

https://www.cisa.gov/resources-tools/resources/contec-cms8000-contains-backdoor

Scores

CVSS v3 7.5

EPSS 0.0108

EPSS Percentile 60.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

VulnCheck KEV 2026-01-20

CWE

CWE-912

Status published

Products (1)

Contec Health/CMS8000 Patient Monitor All versions

Published Jan 30, 2025

Tracked Since Feb 18, 2026