Source: http://www.securityfocus.com/bid/42269/info

Microsoft Windows is prone to a local privilege-escalation vulnerability.

An attacker can exploit this issue to execute arbitrary code with SYSTEM-level privileges. Successful exploits will result in the complete compromise of affected computers. 

Code:
http://www.exploit-db.com/sploits/Chimichurri-CVE-2010-2554.zip