Medtronic MyCareLink Patient Monitor’s update service does not sufficiently verify the authenticity of the data uploaded. An attacker who obtains per-product credentials from the monitor and paired implantable cardiac device information can potentially upload invalid data to the Medtronic CareLink network.

Medtronic MyCareLink Patient Monitor uses per-product credentials that are stored in a recoverable format. An attacker can use these credentials to modify encrypted drive data.