This host is missing an important security update according to Microsoft Bulletin MS12-018.

Successful exploitation could allow local attackers to gain escalated privileges. Impact Level: System

Run Windows Update and update the listed hotfixes or download and update mentioned hotfixes in the advisory from the below link, http://technet.microsoft.com/en-us/security/bulletin/ms12-018

The flaw is due to an error in win32k.sys when handling the 'PostMessage()' function and can be exploited via an application passing specially crafted input to the function.

Microsoft Windows 7 Service Pack 1 and prior Microsoft Windows XP Service Pack 3 and prior Microsoft Windows 2003 Service Pack 2 and prior Microsoft Windows Vista Service Pack 2 and prior Microsoft Windows Server 2008 Service Pack 2 and prior.

• http://secunia.com/advisories/47919/
• http://support.microsoft.com/kb/2641653
• http://technet.microsoft.com/en-us/security/bulletin/ms12-018
• http://www.securitytracker.com/id/1026793

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Updated on 2015-03-25