MS14-009: Description of the security update for the .NET Framework 4.5 for Windows 8, Windows RT, and Windows Server 2012: February 11, 2014


This update resolves vulnerabilities that could allow elevation of privilege if a user goes to a specially crafted website or a website that contains specially crafted web content.


Microsoft has released security bulletin MS14-009. Learn more about how to obtain the fixes that are included in this security bulletin: 

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 Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support

More information about this security update

Download information

This update is available for download from the Microsoft Download Center.

Command-line switches for this update

Learn about the various command-line switches that are supported by this Microsoft .NET Framework update.

Restart information

This 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 information

This update replaces update 2833958 .

Update removal information

Note We do not recommend that you remove any security update.

To remove this update, use the Programs and Features item in Control Panel.
File information

Applies to

This article applies to the following:
  • Microsoft .NET Framework 4.5 when used with:
    • Windows 8
    • Windows RT
    • Windows Server 2012

Article ID: 2898865 - Last Review: Feb 11, 2014 - Revision: 1