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Vulnerabilities in Windows TCP/IP Could Allow Remote Code Execution (941644)

Affected Software:
Microsoft Windows 2000 Service Pack 4
Windows XP Service Pack 2
Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2
Windows Vista
Windows Vista x64 Edition

http://www.microsoft.com/technet/security/bulletin/MS08-001.mspx