CERT has been in contact with over 200 manufacturers of electronic networking equipment after a security firm released details of widespread vulnerabilities. The problem stems from a feature called uPnP which was conceived and designed to increase interoperability and compatibility between devices found in a network.
I found the protocol enabled by default on 5 client devices today. It is recommend the feature be turned off. Each device has a different procedure for disabling the feature.
As always, please let us know if you require any assistance with your network.