August 13, 2013 This security update has been re-released and contains updated files. We recommend that you apply this updated security update.
This update resolves a vulnerability in the Microsoft .NET Framework that could allow elevation of privilege on a client system if a user views a specially crafted webpage by using a web browser that can run XAML Browser Applications (XBAPs).
Microsoft has released the security bulletin MS13-052. You can view the complete security bulletin by going to one of the following Microsoft websites:
How to obtain help and support for this security updateHelp installing updates: Support for Microsoft Update
Security solutions for IT professionals: TechNet Security Troubleshooting and Support
Help protect your Windows-based computer from viruses and malware: Virus Solution and Security Center
Local support according to your country: International Support
PrerequisitesTo install this update, you must have Windows Installer 3.1 or a later version installed on the computer. To obtain the latest version of Windows Installer, go to the following Microsoft website:
Command-line switches for this updateFor information about the various command-line switches that are supported by this update, click the following article number to view the article in the Microsoft Knowledge Base:
2844699 Command-line switches for Microsoft .NET Framework security update packages
Restart informationThis update does not require a system restart after you apply the update unless the files that are being updated are locked or are being used.
Update replacement informationThis update replaces the following update:
2656405 MS12-034: Description of the security update for the .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2: May 8, 2012
Update removal informationNote We do not recommend that you remove any security update.
To remove this update, use the Add or Remove Programs item or use the Programs and Features item in Control Panel.