Security Corporation Security Advisory [SCSA-005]: Proxomitron Universal Web Filter, version 4.4 and below, is vulnerable to a denial of service when being given a parameter over the length of 1024 bytes.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/30840/Proxomitron.txt
Source: https://packetstormsecurity.com/files/30840/Proxomitron.txt.html