Which of these would fall outside the scope of a typical service change management process?

A change to a supplier contract can affect service delivery and cost, so it is within change management scope as a service-impacting change.

A firmware upgrade to a server used for IT Service Continuity is still a change to IT infrastructure and must follow the change management process to avoid unintended impact.

An urgent CPU replacement during an incident is handled as an emergency change, which is a recognized category within change management, not outside it.

A change to a business process, even one that depends on IT services, is a business change owned and managed by the business unit - not an IT service change. ITIL change management scope is explicitly limited to changes within the IT infrastructure and services, so business process changes fall outside its boundary.