This script is Copyright (C) 2012-2013 Tenable Network Security, Inc.
A browser enhancement on the remote Mac OS X host could allow
arbitrary code execution.
The version of Microsoft Silverlight installed on the remote host
reportedly does not properly use unmanaged objects, which could allow
a malicious web application to access memory in an unsafe manner.
An attacker may be able to leverage this vulnerability to execute
arbitrary code on the affected system if a user on it can be tricked
into viewing a specially crafted web page using a web browser that can
run Silverlight applications.
See also :
Microsoft has released a patch for Silverlight 4.
Risk factor :
High / CVSS Base Score : 9.3
CVSS Temporal Score : 7.3
Public Exploit Available : true