This host is missing a critical security update according to Microsoft Bulletin MS11-020.

Successful exploitation could allow remote attackers to execute arbitrary code and cause a denial of service or compromise a vulnerable system. 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://www.microsoft.com/technet/security/Bulletin/MS11-020.mspx

The flaw is caused when Microsoft Server Message Block (SMB) protocol software improperly handles SMB packets, including some pre-authentication scenarios.

Micorsoft Windows 7 Service Pack 1 and prior Microsoft Windows XP Service Pack 3 and prior Microsoft Windows 2K3 Service Pack 2 and prior Microsoft Windows Vista Service Pack 1/2 and prior Microsoft Windows Server 2008 Service Pack 1/2 and prior

• http://support.microsoft.com/kb/2508429
• http://www.microsoft.com/technet/security/Bulletin/MS11-020.mspx

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Updated on 2015-03-25