CVE-2025-0626

Hidden Functionality vulnerability in Contec Health CMS8000 Patient Monitor

Published Jan 30, 2025 CVSS 4.0 · 7.7 High EPSS 1.1% KEV · Not listed
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.

Remediation

Vendor Workaround

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 .

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-1797 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.
History
Type Values Removed Values Added
Description Contec Health CMS8000 Patient Monitor sends out remote access requests to a hard-coded IP address, bypassing existing device network settings to do so. This could serve as a backdoor and lead to a malicious actor being able to upload and overwrite files on the device. 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.
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 The affected product sends out remote access requests to a hard-coded IP address, bypassing existing device network settings to do so. This could serve as a backdoor and lead to a malicious actor being able to upload and overwrite files on the device. Contec Health CMS8000 Patient Monitor sends out remote access requests to a hard-coded IP address, bypassing existing device network settings to do so. This could serve as a backdoor and lead to a malicious actor being able to upload and overwrite files on the device.
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Description The affected product sends out remote access requests to a hard-coded IP address, bypassing existing device network settings to do so. This could serve as a backdoor and lead to a malicious actor being able to upload and overwrite files on the device.
Title Hidden Functionality vulnerability in Contec Health CMS8000 Patient Monitor
Weaknesses CWE-912
References
Metrics cvssV4_0

{'score': 7.7, 'vector': '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'}

Subscriptions

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Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Mar 1, 2025, 5:12 PM
Reserved
Jan 21, 2025, 5:29 PM
Status
Deferred
Published
Jan 30, 2025, 7:15 PM
Modified
Jun 17, 2026, 8:26 AM