CVE-2025-4386 Medtronic MyCareLink Patient Monitor Hardware Debug Port
Attackers with physical access can bypass authentication via an exposed serial interface to gain privileged access to the patient monitor.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-4386?
CVE-2025-4386 is a medium-severity authentication bypass vulnerability in Medtronic MyCareLink Patient Monitor 24950, published on 7 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Medtronic MyCareLink Patient Monitor has an internal serial interface, which allows an attacker with physical access to access a login prompt via a UART terminal.
Weakness: CWE-1263
Which versions are affected by CVE-2025-4386?
How do I fix CVE-2025-4386?
No fix has been published for CVE-2025-4386 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-4386 being exploited?
There is no known exploitation of CVE-2025-4386 in the wild and no public exploit code.
Sources
Also known as GHSA-5jrf-mrg6-w477.