CVE-2025-1204

HIGH

Contec Health CMS8000 Patient Monitor - Unauthenticated Arbitrary File Write via Hardcoded Update IP

Title source: llm

Description

The "update" binary in the firmware of the affected product sends attempts to mount to a hard-coded, routable IP address, bypassing existing device network settings to do so. The function triggers if the 'C' button is pressed at a specific time during the boot process. If an attacker is able to control or impersonate this IP address, they could upload and overwrite files on the device.

References (2)

Core 2

Core References

Various Sources third-party-advisory

https://claroty.com/team82/research/are-contec-cms8000-patient-monitors-infected-with-a-chinese-backdoor-the-reality-is-more-complicated?ref=vault33.org

Third Party Advisory, US Government Resource government-resource

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

Scores

CVSS v4 7.7

EPSS 0.0045

EPSS Percentile 35.3%

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-912

Status published

Products (1)

Contec Health/CMS8000 Patient Monitor

Published Feb 25, 2025

Tracked Since Feb 18, 2026