Cisco Security Advisory – The Cisco 7920 Wireless IP Phone provides Voice Over IP service via IEEE 802.11b Wi-Fi networks and has a form-factor similar to a cordless phone. This product contains two vulnerabilities: The first vulnerability is an SNMP service with fixed community strings that allow remote users to read, write, and erase the configuration of an affected device. The second vulnerability is an open VxWorks Remote Debugger on UDP port 17185 that may allow an unauthenticated remote user to access debugging information or cause a denial of service. Confirmed vulnerable: Cisco 7920 Wireless IP Phone, firmware version 2.0 and earlier.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/41671/cisco-sa-20051116-7920.txt
Source: https://packetstormsecurity.com/files/41671/Cisco-Security-Advisory-20051116-7920.html