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MS09-061: Vulnerability in the .NET common language runtime could allow Remote Code Execution

Support for Windows XP has ended

Microsoft ended support for Windows XP on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

Support for Windows Vista Service Pack 1 (SP1) ends on July 12, 2011. To continue receiving security updates for Windows, make sure you're running Windows Vista with Service Pack 2 (SP2). For more information, refer to this Microsoft web page: Support is ending for some versions of Windows.
INTRODUCTION
Microsoft has released security bulletin MS09-061. To view the complete security bulletin, visit one of the following Microsoft Web sites:

How to obtain help and support for this security update

Help installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help protect your computer that is running Windows from viruses and malware:Virus Solution and Security Center

Local support according to your country: International Support

MORE INFORMATION

Known issues and additional information about this security update

For more information about this security update and for information about any known issues with specific releases of this software, click the following article number to view the article in the Microsoft Knowledge Base:
974417 MS09-061: Description of the security update for the Microsoft .NET Framework 2.0 Service Pack 2 and the Microsoft .NET Framework 3.5 Service Pack 1: October 13, 2009
974291 MS09-061: Description of the security update for the Microsoft .NET Framework 2.0 Service Pack 1 on Windows Vista Service Pack 1 and Windows Server 2008: October 13, 2009
974292 MS09-061: Description of the security update for the Microsoft .NET Framework 2.0 Service Pack 1 and the Microsoft .NET Framework 3.5 on Windows Vista: October 13, 2009
974293 MS09-061: Description of the security update for the .NET Framework 3.5.1 for RC and IDX versions of Windows 7 and Windows Server 2008 R2: October 13, 2009
974467 MS09-061: Description of the security update for the Microsoft .NET Framework 2.0 Service Pack 2 and the Microsoft .NET Framework 3.5 Service Pack 1 on Windows Vista 32-bit edition and Windows Vista 64-bit edition: October 13, 2009
974468 MS09-061: Description of the security update for the Microsoft .NET Framework 2.0 on Windows Vista 32-bit edition and Windows Vista 64-bit edition: October 13, 2009
974469 MS09-061: Description of the security update for the Microsoft .NET Framework 2.0 Service Pack 2 and the Microsoft .NET Framework 3.5 Service Pack 1 on Windows Vista Service Pack 1 and Windows Server 2008: October 13, 2009
974470 MS09-061: Description of the security update for the Microsoft .NET Framework 2.0 Service Pack 2 on Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2: October 13, 2009
974714 MS09-061: Description of the security update for the .NET Framework 3.5.1 for Windows 7 IDX and Windows Server 2008 R2 IDX: October 13, 2009
953295 MS09-061: Description of the security update for the Microsoft .NET Framework 1.0 Service Pack 3 on Windows XP Media Center Edition 2005 and Windows XP Tablet PC Edition 2005: October 13, 2009
953297 MS09-061: Description of the security update for the Microsoft .NET Framework 1.1 Service Pack 1: October 13, 2009
953298 MS09-061: Description of the security update for the Microsoft .NET Framework 1.1 Service Pack 1 on Windows Server 2003 (32-bit): October 13, 2009
953300 MS09-061: Description of the security update for the Microsoft .NET Framework 2.0 Service Pack 1 and the Microsoft .NET Framework 3.5 on Windows 2000, Windows XP, and Windows Server 2003: October 13, 2009
960043 Dual Branch Servicing for the .NET Framework 2.0 Service Pack 2, the .NET Framework 3.0 Service Pack 2, and the .NET Framework 3.5 Service Pack 1
976220 Description of the Patch Registration Cleanup Tool
update security_patch security_update security bug flaw vulnerability malicious attacker exploit registry unauthenticated buffer overrun overflow specially-formed scope specially-crafted denial of service DoS TSE
Properties

Article ID: 974378 - Last Review: 05/08/2012 21:59:00 - Revision: 3.0

Windows 7 Enterprise, Windows Server 2008 R2 Standard, Windows Server 2008 R2 Enterprise, Windows Server 2008 R2 Datacenter, Windows Server 2008 Service Pack 2, Windows Server 2008 Datacenter without Hyper-V, Windows Server 2008 Enterprise without Hyper-V, Windows Server 2008 for Itanium-Based Systems, Windows Server 2008 Standard without Hyper-V, Windows Server 2008 Datacenter, Windows Server 2008 Enterprise, Windows Server 2008 Standard, Windows Web Server 2008, Windows Vista Service Pack 2, Windows Vista Service Pack 1, Windows Vista Business, Windows Vista Enterprise, Windows Vista Home Basic, Windows Vista Home Premium, Windows Vista Starter, Windows Vista Ultimate, Windows Vista Enterprise 64-bit Edition, Windows Vista Home Basic 64-bit Edition, Windows Vista Home Premium 64-bit Edition, Windows Vista Ultimate 64-bit Edition, Windows Vista Business 64-bit Edition, Microsoft Windows Server 2003 Service Pack 2, Microsoft Windows XP Service Pack 2, Microsoft Windows XP Service Pack 3, Microsoft .NET Framework 3.5 Service Pack 1, Microsoft .NET Framework 3.5 Service Pack 1, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.0 Service Pack 2, Microsoft .NET Framework 2.0 Service Pack 2, Microsoft .NET Framework 2.0 Service Pack 2, Microsoft .NET Framework 2.0 Service Pack 1 (x86), Microsoft .NET Framework 2.0 Service Pack 1 (x86), Microsoft .NET Framework 2.0, Microsoft .NET Framework 1.0 Service Pack 3, Microsoft .NET Framework 1.1 Service Pack 1

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