The vulnerable component is bound to the network stack, but the attack is
limited at the protocol level to a logically adjacent topology.
Local
The vulnerable component is not bound to the network stack and the
attacker's path is via read/write/execute capabilities.
Network
The vulnerable component is bound to the network stack and the set of
possible attackers extends beyond the other options listed below, up to
and including the entire Internet.
Physical
The attack requires the attacker to physically touch or manipulate the
vulnerable component.
