Summary

Microsoft has released a Microsoft security advisory about this issue for IT professionals. The security advisory contains additional security-related information. To learn more about the vulnerability, see
https://technet.microsoft.com/security/advisory/3155527

More Information

Important

  • All future security and non-security 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.

  • 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.

Note For Windows RT 8.1, this update is available through Windows Update only.

The following files are available for download from the Microsoft Download Center.

For all supported x64-based versions of Windows Server 2012 Download Download the package now.

For all supported x86-based versions of Windows 8.1 Download Download the package now.

For all supported x64-based versions of Windows 8.1 Download Download the package now.

For all supported x64-based versions of Windows Server 2012 R2 Download Download the package now.

Release Date: May 10, 2016


For more information about how to download Microsoft support files, click the following article number to go to the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

Virus-scan claim

Microsoft scanned this file for viruses by using the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to it.

More Information

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

Windows8.1-KB3151058-x86.msu

1560AC25067CC01063B3CA849908FC93FFC99219

259ACDC4D5D421886DBAB3DC756CB9A43F8882E433F8DF2EF856F94F4DFC4441

Windows8.1-KB3151058-x64.msu

2A14FB6B05629361386B8A27244A33317031F92E

AAE7CEBEAAADF9A6966015D2E87840424136F61ED113200A17767CEA3D566078

Windows8-RT-KB3151058-x64.msu

4495EB316DC2123BA6FED2605022FA2FB0C43137

7C7512107237FDB0C30FE5DB9BD92E5BA84B6777C6099461560E707E102D1B9E


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

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 RT 8.1, 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

Bcryptprimitives.dll

6.3.9600.18154

340,872

03-Dec-2015

18:52

x86

Cng.sys

6.3.9600.18298

478,808

06-Apr-2016

17:49

x86

Ksecpkg.sys

6.3.9600.18154

148,312

03-Dec-2015

18:51

x86

Lsasrv.dll

6.3.9600.18298

1,118,720

06-Apr-2016

15:49

x86

Adtschema.dll

6.3.9600.17415

736,768

29-Oct-2014

02:06

x86

Msaudite.dll

6.3.9600.17415

154,112

29-Oct-2014

02:06

x86

Msobjs.dll

6.3.9600.16384

61,952

22-Aug-2013

04:17

x86

Ncrypt.dll

6.3.9600.18298

120,384

06-Apr-2016

17:49

x86

Ncryptsslp.dll

6.3.9600.18154

91,416

03-Dec-2015

18:52

x86

Schannel.dll

6.3.9600.18298

357,888

06-Apr-2016

15:48

x86

Mrxsmb10.sys

6.3.9600.18298

229,376

06-Apr-2016

16:48

x86

Mrxsmb20.sys

6.3.9600.18298

153,088

06-Apr-2016

16:49

x86

Mrxsmb.sys

6.3.9600.18298

328,704

06-Apr-2016

16:48

x86

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Bcryptprimitives.dll

6.3.9600.18154

397,224

03-Dec-2015

19:42

x64

None

Not applicable

Certcli.dll

6.3.9600.18298

445,440

06-Apr-2016

17:40

x64

None

Not applicable

Cng.sys

6.3.9600.18298

561,960

06-Apr-2016

21:13

x64

None

Not applicable

Ksecpkg.sys

6.3.9600.18154

177,488

03-Dec-2015

19:41

x64

None

Not applicable

Lsasrv.dll

6.3.9600.18298

1,441,792

06-Apr-2016

16:57

x64

None

Not applicable

Adtschema.dll

6.3.9600.17415

736,768

29-Oct-2014

02:50

x64

None

Not applicable

Msaudite.dll

6.3.9600.17415

154,112

29-Oct-2014

02:51

x64

None

Not applicable

Msobjs.dll

6.3.9600.16384

61,952

22-Aug-2013

11:46

x64

None

Not applicable

Ncrypt.dll

6.3.9600.18298

137,976

06-Apr-2016

21:13

x64

None

Not applicable

Ncryptsslp.dll

6.3.9600.18154

106,960

03-Dec-2015

19:42

x64

None

Not applicable

Ocspisapi.dll

6.3.9600.17415

293,376

29-Oct-2014

01:43

x64

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspisapictrs.h

Not applicable

1,421

18-Jun-2013

15:06

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspisapictrs.ini

Not applicable

2,636

18-Jun-2013

15:06

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,960

22-Aug-2013

19:26

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,134

22-Aug-2013

19:44

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,918

22-Aug-2013

12:30

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,210

22-Aug-2013

19:43

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,098

22-Aug-2013

19:30

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,028

22-Aug-2013

19:46

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,140

22-Aug-2013

19:31

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,642

22-Aug-2013

19:30

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,576

22-Aug-2013

19:31

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,026

22-Aug-2013

19:23

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,028

22-Aug-2013

19:23

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,188

22-Aug-2013

19:23

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,126

22-Aug-2013

19:33

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,064

22-Aug-2013

19:36

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,092

22-Aug-2013

19:36

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,828

22-Aug-2013

19:32

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,464

22-Aug-2013

19:20

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,480

22-Aug-2013

19:20

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,460

22-Aug-2013

19:21

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvc.exe

6.3.9600.17415

219,136

29-Oct-2014

02:19

x64

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.h

Not applicable

1,569

18-Jun-2013

15:06

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,918

18-Jun-2013

15:06

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Schannel.dll

6.3.9600.18298

432,128

06-Apr-2016

16:52

x64

None

Not applicable

Mrxsmb10.sys

6.3.9600.18298

284,672

06-Apr-2016

18:19

x64

None

Not applicable

Mrxsmb20.sys

6.3.9600.18298

201,728

06-Apr-2016

18:20

x64

None

Not applicable

Mrxsmb.sys

6.3.9600.18298

401,920

06-Apr-2016

18:19

x64

None

Not applicable

Schannel.dll

6.3.9600.18298

357,888

06-Apr-2016

15:48

x86

None

Not applicable

Bcryptprimitives.dll

6.3.9600.18154

340,872

03-Dec-2015

18:52

x86

None

Not applicable

Certcli.dll

6.3.9600.18298

324,096

06-Apr-2016

16:20

x86

None

Not applicable

Adtschema.dll

6.3.9600.17415

736,768

29-Oct-2014

02:06

x86

None

Not applicable

Msaudite.dll

6.3.9600.17415

154,112

29-Oct-2014

02:06

x86

None

Not applicable

Msobjs.dll

6.3.9600.16384

61,952

22-Aug-2013

04:17

x86

None

Not applicable

Ncrypt.dll

6.3.9600.18298

120,384

06-Apr-2016

17:49

x86

None

Not applicable

Ncryptsslp.dll

6.3.9600.18154

91,416

03-Dec-2015

18:52

x86

None

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 8, Windows RT, or Windows Server 2012

    RTM

    GDR

    6.2.920 0.21xxx

    Windows 8, Windows RT, or 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

SP requirement

Service branch

Bcryptprimitives.dll

6.2.9200.21637

374,936

22-Sep-2015

13:43

x64

None

Not applicable

Ksecdd.sys

6.2.9200.21473

100,184

02-May-2015

06:23

x64

None

Not applicable

Lsass.exe

6.2.9200.20521

35,840

20-Sep-2012

06:33

x64

None

Not applicable

Sspicli.dll

6.2.9200.21703

164,352

17-Nov-2015

08:00

x64

None

Not applicable

Sspisrv.dll

6.2.9200.20521

27,648

20-Sep-2012

06:32

x64

None

Not applicable

Cng.sys

6.2.9200.21637

566,072

22-Sep-2015

13:43

x64

None

Not applicable

Ksecpkg.sys

6.2.9200.21703

171,352

17-Nov-2015

09:52

x64

None

Not applicable

Lsasrv.dll

6.2.9200.21830

1,280,000

09-Apr-2016

16:01

x64

None

Not applicable

Adtschema.dll

6.2.9200.21289

719,360

10-Nov-2014

04:43

x64

None

Not applicable

Msaudite.dll

6.2.9200.21269

146,944

11-Oct-2014

05:38

x64

None

Not applicable

Msobjs.dll

6.2.9200.16384

61,952

26-Jul-2012

02:36

x64

None

Not applicable

Ncrypt.dll

6.2.9200.21708

135,168

04-Dec-2015

20:37

x64

None

Not applicable

Ncryptsslp.dll

6.2.9200.21708

89,088

04-Dec-2015

20:37

x64

None

Not applicable

Ocspsvcctrs.ini

Not applicable

2,960

26-Jul-2012

05:07

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,134

26-Jul-2012

08:00

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,918

26-Jul-2012

04:43

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,210

26-Jul-2012

07:59

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,098

26-Jul-2012

08:00

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,028

26-Jul-2012

07:59

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,140

26-Jul-2012

05:21

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,642

26-Jul-2012

08:11

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,576

26-Jul-2012

05:20

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,026

26-Jul-2012

07:36

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,028

26-Jul-2012

07:48

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,188

26-Jul-2012

05:30

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,126

26-Jul-2012

05:08

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,064

26-Jul-2012

07:49

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,092

26-Jul-2012

07:52

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,828

26-Jul-2012

05:12

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,464

26-Jul-2012

08:05

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,480

26-Jul-2012

05:13

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,460

26-Jul-2012

08:11

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvc.exe

6.2.9200.21345

272,384

15-Jan-2015

05:27

x64

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.h

Not applicable

1,569

02-Jun-2012

14:34

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,918

02-Jun-2012

14:34

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Credssp.dll

6.2.9200.21703

20,480

17-Nov-2015

07:59

x64

SP_

AMD64_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.dll

6.2.9200.21703

94,720

17-Nov-2015

08:01

x64

SP_

AMD64_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.mof

Not applicable

964

02-Jun-2012

14:33

Not applicable

SP_

AMD64_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Wdigest.dll

6.2.9200.21703

208,896

17-Nov-2015

08:01

x64

None

Not applicable

Kerberos.dll

6.2.9200.21830

829,952

09-Apr-2016

16:01

x64

None

Not applicable

Msv1_0.dll

6.2.9200.21830

317,952

09-Apr-2016

16:01

x64

None

Not applicable

Schannel.dll

6.2.9200.21830

408,576

09-Apr-2016

16:01

x64

None

Not applicable

Shcore.dll

6.2.9200.21703

590,848

17-Nov-2015

08:00

x64

None

Not applicable

Mrxsmb10.sys

6.2.9200.21529

281,600

25-Jun-2015

18:52

x64

None

Not applicable

Mrxsmb20.sys

6.2.9200.21548

205,312

11-Jul-2015

17:07

x64

None

Not applicable

Mrxsmb.sys

6.2.9200.21342

396,800

06-Jan-2015

23:17

x64

None

Not applicable

Lsm.dll

6.2.9200.21703

439,808

17-Nov-2015

08:00

x64

None

Not applicable

Workerdd.dll

6.2.9200.21012

14,848

12-Apr-2014

06:58

x64

None

Not applicable

Usercpl.dll

6.2.9200.21703

1,043,968

17-Nov-2015

08:01

x64

None

Not applicable

Usercpl.ptxml

Not applicable

789

11-Oct-2012

00:40

Not applicable

None

Not applicable

Winlogon.exe

6.2.9200.21703

578,048

17-Nov-2015

08:01

x64

None

Not applicable

Sspicli.dll

6.2.9200.20984

99,840

10-Mar-2014

01:34

x86

None

Not applicable

Wdigest.dll

6.2.9200.21703

176,640

17-Nov-2015

08:09

x86

None

Not applicable

Kerberos.dll

6.2.9200.21830

666,112

09-Apr-2016

16:48

x86

None

Not applicable

Msv1_0.dll

6.2.9200.21830

274,944

09-Apr-2016

16:48

x86

None

Not applicable

Schannel.dll

6.2.9200.21830

335,872

09-Apr-2016

16:48

x86

None

Not applicable

Bcryptprimitives.dll

6.2.9200.21637

333,584

22-Sep-2015

13:43

x86

None

Not applicable

Adtschema.dll

6.2.9200.21289

719,360

10-Nov-2014

03:40

x86

None

Not applicable

Msaudite.dll

6.2.9200.21269

146,944

11-Oct-2014

04:35

x86

None

Not applicable

Msobjs.dll

6.2.9200.16384

61,952

26-Jul-2012

02:47

x86

None

Not applicable

Ncrypt.dll

6.2.9200.21708

89,088

04-Dec-2015

20:11

x86

None

Not applicable

Ncryptsslp.dll

6.2.9200.21708

73,728

04-Dec-2015

20:11

x86

None

Not applicable

Credssp.dll

6.2.9200.21703

17,408

17-Nov-2015

08:08

x86

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.dll

6.2.9200.21703

76,800

17-Nov-2015

08:09

x86

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.mof

Not applicable

964

02-Jun-2012

14:33

Not applicable

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Shcore.dll

6.2.9200.21703

460,800

17-Nov-2015

08:09

x86

None

Not applicable

Usercpl.dll

6.2.9200.21703

961,536

17-Nov-2015

08:09

x86

None

Not applicable

Usercpl.ptxml

Not applicable

789

11-Oct-2012

00:42

Not applicable

None

Not applicable


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