Helix Universal Server 9 and earlier versions (RealSystem Server 8, 7 and RealServer G2) are vulnerable to a root exploit when certain types of character strings appear in large numbers within URLs destined for the Server’s protocol parsers.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/31570/aitel.html
Source: https://packetstormsecurity.com/files/31570/aitel.html.html