SECNAP Network Security Advisory – 3com NBX IP VOIP NetSet(r) Configuration Manager is susceptible to a denial of service attack due to insufficient user input checking.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/33219/3COMdos.txt
Source: https://packetstormsecurity.com/files/33219/3COMdos.txt.html