This update resolves a vulnerability in the Microsoft .NET Framework that could allow remote code execution 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 computer that is running Windows from viruses and malware: Virus Solution and Security Center
Local support according to your country: International Support
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 it unless the files that are being updated are locked or in use.
Update replacement informationThis update replaces the following update:
2572077 MS11-078: Description of the security update for .NET Framework 3.5.1 for Windows 7 SP1 and Windows Server 2008 R2 SP1: October 11, 2011
Update removal informationNote We do not recommend that you remove any security update.
To remove this update, use the Programs and Features item in Control Panel.