MS14-057: Description of the security update for the .NET Framework 4.5, the .NET Framework 4.5.1, and the .NET Framework 4.5.2 for Windows Vista SP2, Windows Server 2008 SP2, Windows 7 SP1, and Windows Server 2008 R2 SP1: October 14, 2014


Introduction


This security update resolves vulnerabilities that could allow remote code execution if an attacker sends a specially crafted URL request that contains international characters to a .NET web application.

Summary


Microsoft has released security bulletin MS14-057. 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 computer that is running Windows from viruses and malware: Virus and Security Solution Center

Local support according to your country: International Support

More information about this security update

Download information

To install this update, install it from Microsoft Windows Update.

Additionally, you can install this update from the Microsoft Download Center.

Prerequisites

To install this update, you must have Windows Installer 3.1 or a later version installed on the computer.

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 the files that are being updated are locked or are being used.

Update replacement information

This update replaces update 2729460 .

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.

Applies to

This article applies to the following:

  • Microsoft .NET Framework 4.5.2 when used with:


    • Windows Server 2008 R2 Service Pack 1
    • Windows 7 Service Pack 1
    • Windows Server 2008 Service Pack 2
    • Windows Vista Service Pack 2
  • Microsoft .NET Framework 4.5.1 when used with:

    • Windows Server 2008 R2 Service Pack 1
    • Windows 7 Service Pack 1
    • Windows Server 2008 Service Pack 2
    • Windows Vista Service Pack 2
  • Microsoft .NET Framework 4.5 when used with:

    • Windows Server 2008 R2 Service Pack 1
    • Windows 7 Service Pack 1
    • Windows Server 2008 Service Pack 2
    • Windows Vista Service Pack 2