November 8, 2016 A detection change was made to account for the .NET Framework 4.6.1 hotfix rollup for customers who were not being correctly offered this security update for the .NET Framework 4.6.1.

May 10, 2016 This security update has been re-released and contains updated files. This re-release is intended for LDR (limited distribution release) content customers only. We determined that there were some issues in certain printing scenarios because of a missing dependency. If you use LDR content, we recommend that you apply this updated security update. There are no changes in this re-release for GDR (general distribution release) content customers.


View products that this article applies to.

Summary

This update resolves a vulnerability in the Microsoft .NET Framework. The security feature bypass exists in a .NET Framework component that does not properly validate certain elements of a signed XML document. To learn more about this vulnerability, see Microsoft Security Bulletin MS16-035.

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.

Known issues in this security update

You may experience the following issue after you install this update:

After you apply security update 3141780, .NET Framework applications encounter exception errors or unexpected failures while processing files that contain SignedXml

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 get security updates automatically, see the "Turn on automatic updating in the Control Panel" section of this Safety & Security Center article.

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 install instructions on the download page.

Download Download security update 3135998

Update deployment information

For deployment information about this update, see Microsoft Knowledge Base article 3141780.

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-KB3135998-arm.msu

7BB249AFB834094337920D40E27A64CD4BA337B6

DD6F0A3BB8E5921DA40A96DCB2910E5E4F3C343B4C890053EA6C604E2560C833

Windows8.1-KB3135998-x64.msu

2B0809324B818C9A6943974A76A08326085C85B4

89EAFC7706C22CABA92BB861F88673892D650A4F1E71CA6BD9E3879DA5E6B7E7

Windows8.1-KB3135998-x86.msu

E31D79FDE012824DDB5776C243C12B0C134DFAD5

9F2D2D695FA2E8EFBB788D8E212994E6740D40FF5E12EC39598B3CB3877C7EDF

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

presentationframework.dll

4.6.1080.0

6,080,888

12-Apr-2016

03:33

reachframework.dll

4.6.1080.0

583,000

12-Apr-2016

03:33

system.security.dll

4.6.1080.0

288,952

12-Apr-2016

03:33

system.windows.controls.ribbon.dll

4.6.1080.0

740,248

12-Apr-2016

03:33

system.xaml.dll

4.6.1080.0

626,848

12-Apr-2016

03:33

windowsbase.dll

4.6.1080.0

1,254,728

12-Apr-2016

03:33

msvcp120_clr0400.dll

12.0.52512.0

484,552

20-Feb-2016

00:20

msvcr120_clr0400.dll

12.0.52512.0

987,848

20-Feb-2016

00:20

wpfgfx_v0400.dll

4.6.1080.0

1,692,336

12-Apr-2016

03:33

presentationcore.dll

4.6.1080.0

3,491,168

12-Apr-2016

03:33

system.printing.dll

4.6.1080.0

366,936

12-Apr-2016

03:33

For all supported x64-based versions of systems

File name

File version

File size

Date

Time

msvcp120_clr0400.dll

12.0.52512.0

690,016

20-Feb-2016

00:20

msvcr120_clr0400.dll

12.0.52512.0

993,632

20-Feb-2016

00:20

presentationframework.dll

4.6.1080.0

6,080,888

12-Apr-2016

03:33

reachframework.dll

4.6.1080.0

583,000

12-Apr-2016

03:33

system.security.dll

4.6.1080.0

288,952

12-Apr-2016

03:33

system.windows.controls.ribbon.dll

4.6.1080.0

740,248

12-Apr-2016

03:33

system.xaml.dll

4.6.1080.0

626,848

12-Apr-2016

03:33

windowsbase.dll

4.6.1080.0

1,254,728

12-Apr-2016

03:33

wpfgfx_v0400.dll

4.6.1080.0

2,148,536

12-Apr-2016

03:26

presentationcore.dll

4.6.1080.0

3,469,000

12-Apr-2016

03:26

system.printing.dll

4.6.1080.0

366,272

12-Apr-2016

03:26

presentationframework.dll

4.6.1080.0

6,080,888

12-Apr-2016

03:33

reachframework.dll

4.6.1080.0

583,000

12-Apr-2016

03:33

system.security.dll

4.6.1080.0

288,952

12-Apr-2016

03:33

system.windows.controls.ribbon.dll

4.6.1080.0

740,248

12-Apr-2016

03:33

system.xaml.dll

4.6.1080.0

626,848

12-Apr-2016

03:33

windowsbase.dll

4.6.1080.0

1,254,728

12-Apr-2016

03:33

msvcp120_clr0400.dll

12.0.52512.0

484,552

20-Feb-2016

00:20

msvcr120_clr0400.dll

12.0.52512.0

987,848

20-Feb-2016

00:20

wpfgfx_v0400.dll

4.6.1080.0

1,692,336

12-Apr-2016

03:33

presentationcore.dll

4.6.1080.0

3,491,168

12-Apr-2016

03:33

system.printing.dll

4.6.1080.0

366,936

12-Apr-2016

03:33

For all supported ARM-based versions of systems

File name

File version

File size

Date

Time

Platform

Msvcp120_clr0400.dll

12.0.52242.36242

602,080

20-Feb-2016

00:20

Not Applicable

Msvcr120_clr0400.dll

12.0.52242.36242

634,336

20-Feb-2016

00:20

Not Applicable

System.security.dll

4.6.1080.0

288,952

12-Apr-2016

03:33

x86

System.xaml.dll

4.6.1080.0

626,848

12-Apr-2016

03:33

x86


Help for installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support


Applies toThis article applies to the following:

  • Microsoft .NET Framework 4.6 and 4.6.1 when used with:

    • Windows Server 2012 R2

    • Windows RT 8.1

    • Windows 8.1

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