Compromise from a remote network is possible. Compromise from the local serial console port is a shoe in.
Root access is attainable through either avenue.
The NetStructure 7180 can be compromised via the admin console even after the admin password has been changed. Root access can be obtained via the Internet when used in a poorly configured or default configuration. Additionally, web based management authentication is done in the clear. The NetStructure 7180 has two undocumented accounts, servnow and root, each with a password generated from the MAC address of the primary interface. By default, the NetStructure 7180 has an SNMP daemon running with a default community string of 'public'.