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Summary

This update resolves a vulnerability in the Microsoft .NET Framework. The vulnerability could allow denial of service if an attacker inserts specially crafted XSLT into a client-side XML web part that causes recursive calls on the server. To learn more about this vulnerability, see Microsoft Security Bulletin MS16-019.

More Information

Important All future security and nonsecurity updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.

How to obtain and install this update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see Stay up-to-date for more secure web browsing.Note For Windows RT 8.1, this update is available through Windows Update only.

Method 2: Microsoft Download Center

You can obtain the stand-alone update package through the Microsoft Download Center. To install this update, follow the installation instructions on the download page.DownloadDownload security update 3122660

Update deployment information

For deployment information about this update, see Microsoft Knowledge Base article 3137893.

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.

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 does not replace any previously released update.

File hash

Windows8.1-KB3122660-arm.msu

868475E9A6EFC6143FDC8CC0E9B0CEE993E1C560

70DE5C209EE44438656444F2D2B35A37F7D839537AE5345B2203F131490F6B1C

Windows8.1-KB3122660-x64.msu

D9C0392B70F6F4E7C9B601A836D8EA2DB05D169B

EAA8943529843C3B7E23AE3B2EAA8C298841C869AA7C1A9AC00A9095EF92BB2C

Windows8.1-KB3122660-x86.msu

CC49BA4F624B222F90352D0D2B6149E9C9FC40B4

082C922802C914CAC7BE0920DFB17426B42115A53A2AF47DFE196A1816BCBCA1

File attributes

The 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

File name

File version

File size

Date

Time

system.data.sqlxml.dll

4.6.1064.2

730,824

03-Dec-2015

03:40

system.xml.dll

4.6.1064.2

2,621,080

03-Dec-2015

03:40

For all supported x64-based versions of systems

File name

File version

File size

Date

Time

system.data.sqlxml.dll

4.6.1064.2

730,824

03-Dec-2015

03:40

system.xml.dll

4.6.1064.2

2,621,080

03-Dec-2015

03:40

system.data.sqlxml.dll

4.6.1064.2

730,824

03-Dec-2015

03:40

system.xml.dll

4.6.1064.2

2,621,080

03-Dec-2015

03:40

Help for installing updates: Support for Microsoft UpdateSecurity solutions for IT professionals: TechNet Security Troubleshooting and SupportHelp for protecting your Windows-based computer from viruses and malware: Virus Solution and Security CenterLocal support according to your country: International Support

Applies toThis article applies to the following:

  • Microsoft .NET Framework 4.6.1 when used with:

    • Windows Server 2012 R2

    • Windows RT 8.1

    • Windows 8.1

  • Microsoft .NET Framework 4.6 when used with:

    • Windows Server 2012 R2

    • Windows RT 8.1

    • Windows 8.1

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