Summary

This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if an authenticated attacker uses Remote Desktop Protocol (RDP) to log on to the target system and sends specially crafted data over the connection. By default, RDP is not enabled on any Windows operating system. Systems that do not have RDP enabled are not at risk. 

To learn more about the vulnerability, see Microsoft Security Bulletin MS16-017.

More Information

Important

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

  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

How to obtain and install the 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
Get security updates automatically.

You can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

Click the download link in Microsoft Security Bulletin MS16-017 that corresponds to the version of Windows that you are running.

More Information

Known issues in this security update

  • You may have to restart the computer multiple times after you install this security update on a Windows 7-based computer that is running RDP 8.0.

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

File Information

File name

SHA1 hash

SHA256 hash

Windows6.1-KB3126446-x86.msu

EB520294346B223A0DB07F174ADFAB93DC39FFA8

71854E0872CF1635A4E0D2FEE02E7FEE0A57BD192E75877404859D079A53FBEA

Windows8-RT-KB3126446-x64.msu

67F5BE3101A99B6D026363C268370BE1EC139D89

CFC651CACB292B50696D261D5CC67CE1B9CE0F017D54600E93FC25FEECA71DCB

Windows8.1-KB3126446-x86.msu

6C4ACDEB1BA717FF8A56346226CD8293C281A2D9

8529B29834D310C1100362BB6937A0AA7836B47D5189F901F8E24DD702DDD54F

Windows8.1-KB3126446-x64.msu

5DB36152E244441F00457652E96E27BB01142C10

B068664FC83AA39EB78F61968AF3DC274C59421A6C2118813F49432282A91AC2

Windows6.1-KB3126446-x64.msu

191BD43115F35BDEA4E34F18C3DFEDEC17C000BF

1078C1E995F4527D94F47AF3BCE453154C4F79DE768693D0E8E63223199691DA


The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 7 file information

Notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.1.760 1.18xxx

    Windows 7

    SP1

    GDR

    6.1.760 1.23 xxx

    Windows 7

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Rdpcorets.dll

6.2.9200.17395

2,745,856

20-Dec-2015

18:45

x86

Rdpgrouppolicyextension.dll

6.2.9200.16914

13,824

20-Dec-2015

18:45

x86

Rdpudd.dll

6.2.9200.17610

221,184

20-Dec-2015

16:16

x86

Rdpvideominiport.sys

6.2.9200.16398

14,848

20-Dec-2015

16:16

x86

Terminalserver-winip.admx

Not applicable

8,056

03-Jun-2015

20:16

Not applicable

Rdpcorets.dll

6.2.9200.21506

2,747,392

20-Dec-2015

18:51

x86

Rdpgrouppolicyextension.dll

6.2.9200.20883

13,824

20-Dec-2015

18:51

x86

Rdpudd.dll

6.2.9200.21729

221,184

20-Dec-2015

16:15

x86

Rdpvideominiport.sys

6.2.9200.16398

14,848

20-Dec-2015

16:15

x86

Terminalserver-winip.admx

Not applicable

8,056

03-Jun-2015

20:16

Not applicable

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Rdpcorets.dll

6.2.9200.17395

3,180,544

20-Dec-2015

18:50

x64

Rdpgrouppolicyextension.dll

6.2.9200.16914

16,384

20-Dec-2015

18:50

x64

Rdpudd.dll

6.2.9200.17610

243,200

20-Dec-2015

14:08

x64

Rdpvideominiport.sys

6.2.9200.16398

19,456

03-Jun-2015

20:17

x64

Terminalserver-winip.admx

Not applicable

8,056

03-Jun-2015

20:17

Not applicable

Rdpcorets.dll

6.2.9200.21506

3,182,080

20-Dec-2015

19:12

x64

Rdpgrouppolicyextension.dll

6.2.9200.20883

16,384

20-Dec-2015

19:12

x64

Rdpudd.dll

6.2.9200.21729

243,200

20-Dec-2015

14:08

x64

Rdpvideominiport.sys

6.2.9200.16398

19,456

03-Jun-2015

20:17

x64

Terminalserver-winip.admx

Not applicable

8,056

03-Jun-2015

20:17

Not applicable

Windows Server 2012 file information

Notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.17xxx

    Windows Server 2012

    RTM

    GDR

    6.2.920 0.21xxx

    Windows Server 2012

    RTM

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Rdpcorets.dll

6.2.9200.17610

3,248,640

18-Dec-2015

00:56

x64

Rdpudd.dll

6.2.9200.17610

235,520

17-Dec-2015

19:57

x64

Rdpvideominiport.sys

6.2.9200.16434

27,880

12-Oct-2012

08:08

x64

Rfxvmt.dll

6.2.9200.16434

36,352

12-Oct-2012

06:14

x64

Rdpcorets.dll

6.2.9200.21729

3,250,688

17-Dec-2015

21:43

x64

Rdpudd.dll

6.2.9200.21729

235,520

17-Dec-2015

19:31

x64

Rdpvideominiport.sys

6.2.9200.16384

27,888

26-Jul-2012

03:17

x64

Rfxvmt.dll

6.2.9200.16384

36,352

26-Jul-2012

03:07

x64

Windows 8.1 and Windows Server 2012 R2 file information

Notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.3.960 0.17 xxx

    Windows 8.1, and Windows Server 2012 R2

    RTM

    GDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Rdpcorets.dll

6.3.9600.18167

2,975,744

17-Dec-2015

16:11

x86

Rdpudd.dll

6.3.9600.18167

117,248

17-Dec-2015

17:45

x86

Rdpvideominiport.sys

6.3.9600.17415

22,848

29-Oct-2014

03:10

x86

Rfxvmt.dll

6.3.9600.17415

33,792

29-Oct-2014

01:54

x86

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Rdpcorets.dll

6.3.9600.18167

3,547,648

17-Dec-2015

16:17

x64

Rdpudd.dll

6.3.9600.18167

131,584

17-Dec-2015

18:29

x64

Rdpvideominiport.sys

6.3.9600.17415

27,456

29-Oct-2014

03:56

x64

Rfxvmt.dll

6.3.9600.17415

40,448

29-Oct-2014

02:37

x64


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