Exploit

The FDA definition includes accidental as well as intentional use of a vulnerability. It also covers using the device as a path into other connected devices or systems, not only harm to the device itself.

An exploit is an instance where a vulnerability or vulnerabilities have been exercised (accidently or intentionally) by a threat and could impact the safety or essential performance of a medical device or use a medical device as a vector to compromise a connected device or system.

FDA guidance: Postmarket Management of Cybersecurity in Medical Devices (December 2016), Section IV.E, Definitions