CVE-2024-12248: Out-of-bounds Write vulnerability in Contec Health CMS8000 Patient Monitor

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 20 Jan 2026. It cites 1 public report, the first from 20 Jan 2026.

• loginsoft.com

How likely is exploitation in the next 30 days?

1.3%

EPSS score, percentile 70.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

9.3 Critical

CVSS v4.0 base score, given by the CNA

What should I do?

Per FDA recommendation, CISA recommends users remove any Contec CMS8000 devices from their networks. Full textSolution from the CVE record.

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

• Firmware version smart3250-2.6.27-wlan2.1.7.cramfs
• Firmware version CMS7.820.075.08/0.74(0.75)
• Firmware version CMS7.820.120.01/0.93(0.95)

Versions by product

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

Out-of-bounds Write vulnerability in Contec Health CMS8000 Patient Monitor

Contec Health CMS8000 Patient Monitor is vulnerable to an out-of-bounds write, which could allow an attacker to send specially formatted UDP requests in order to write arbitrary data. This could result in remote code execution.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Solution (from the CVE record)

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

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 30 Oct 2026. About the data.

Timeline