This script is Copyright (C) 2002-2012 Tenable Network Security, Inc.
It is possible to execute code on the remote host.
The remote web server is vulnerable to a format string attack.
An attacker may exploit this vulnerability to cause the web server
to crash continually or even execute arbitrary code on the system.
Upgrade your software or protect it with a filtering reverse proxy.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 8.3
Public Exploit Available : true