Resolves a vulnerability in the Microsoft .NET Framework that could allow identity spoofing on a client system.
Microsoft has released security bulletin MS13-040. 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
Known issues with this security update
- Windows Update will not offer this security update to Windows RT-based computers until update 2808380 has been installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:2808380 Windows RT-based device cannot download software updates or Windows Store apps
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 files that are being updated are locked or are being used.
Update replacement informationThis update does not replace any previously released update.
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.
File informationThe English (United States) version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
For all supported x86-based versions of systems
For all supported x64-based versions of systems
For all supported ARM-based versions of systems
Article ID: 2804583 - Last Review: May 14, 2013 - Revision: 1