February 9, 2016 This security update has been rereleased and contains updated files. We recommend that you apply this updated security update.


View products that this article applies to.

Summary

This update resolves vulnerabilities in the Microsoft .NET Framework. The most severe of these vulnerabilities could allow elevation of privilege if an attacker injects a client-side script into a user's browser. To learn more about this vulnerability, see Microsoft Security Bulletin MS15-118.

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

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.

Download Download security update 3098785

Update deployment information

For deployment information about this update, see Microsoft Knowledge Base article 3104507.



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 replaces previously released update 3098000.

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.web.applicationservices.dll

4.6.1069.1

70,928

05-Jan-2016

00:41

system.web.extensions.dll

4.6.1069.1

1,846,488

05-Jan-2016

00:41

aspnet_perf.dll

4.6.1069.1

41,648

05-Jan-2016

00:41

aspnet_state_perf.h

318

04-Jan-2016

22:46

aspnet_state_perf.ini

42,996

05-Jan-2016

00:42

aspnet_wp.exe

4.6.1069.1

43,688

05-Jan-2016

00:41

msvcp120_clr0400.dll

12.0.52512.0

484,552

07-Jan-2016

23:42

msvcr120_clr0400.dll

12.0.52512.0

987,848

07-Jan-2016

23:42

system.web.extensions.dll

4.6.1069.1

1,846,488

05-Jan-2016

00:41

webengine4.dll

4.6.1069.1

511,656

05-Jan-2016

00:41

webengine.dll

4.6.1069.1

25,256

05-Jan-2016

00:41

system.web.dll

4.6.1069.1

5,349,544

05-Jan-2016

00:41

For all supported x64-based versions of systems

File name

File version

File size

Date

Time

aspnet_perf.dll

4.6.1069.1

45,744

05-Jan-2016

00:35

aspnet_state_perf.h

318

04-Jan-2016

22:51

aspnet_state_perf.ini

42,996

05-Jan-2016

00:36

aspnet_wp.exe

4.6.1069.1

48,296

05-Jan-2016

00:35

msvcp120_clr0400.dll

12.0.52512.0

690,016

07-Jan-2016

23:42

msvcr120_clr0400.dll

12.0.52512.0

993,632

07-Jan-2016

23:42

system.web.applicationservices.dll

4.6.1069.1

70,928

05-Jan-2016

00:41

system.web.extensions.dll

4.6.1069.1

1,846,488

05-Jan-2016

00:41

webengine4.dll

4.6.1069.1

623,784

05-Jan-2016

00:35

webengine.dll

4.6.1069.1

26,792

05-Jan-2016

00:35

system.web.dll

4.6.1069.1

5,338,280

05-Jan-2016

00:35

system.web.applicationservices.dll

4.6.1069.1

70,928

05-Jan-2016

00:41

system.web.extensions.dll

4.6.1069.1

1,846,488

05-Jan-2016

00:41

aspnet_perf.dll

4.6.1069.1

41,648

05-Jan-2016

00:41

aspnet_state_perf.h

318

04-Jan-2016

22:46

aspnet_state_perf.ini

42,996

05-Jan-2016

00:42

aspnet_wp.exe

4.6.1069.1

43,688

05-Jan-2016

00:41

msvcp120_clr0400.dll

12.0.52512.0

484,552

07-Jan-2016

23:42

msvcr120_clr0400.dll

12.0.52512.0

987,848

07-Jan-2016

23:42

system.web.extensions.dll

4.6.1069.1

1,846,488

05-Jan-2016

00:41

webengine4.dll

4.6.1069.1

511,656

05-Jan-2016

00:41

webengine.dll

4.6.1069.1

25,256

05-Jan-2016

00:41

system.web.dll

4.6.1069.1

5,349,544

05-Jan-2016

00:41


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 8.1

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