Applies to:

Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2

Summary

An elevation of privilege vulnerability exists when the .NET Framework common language runtime (CLR) allows file creation in arbitrary locations. An attacker who successfully exploited this vulnerability could write files to folders that require higher privileges than what the attacker already has.

To learn more about the vulnerabilities, go to the following Common Vulnerabilities and Exposures (CVE).

Important

  • As a reminder to advanced IT administrators, updates to .NET Framework 3.5 for Windows 8.1 and Windows Server 2012 R2 should only be applied on systems where .NET Framework 3.5 is present and enabled. Customers who attempt to pre-install updates to .NET Framework 3.5 to offline images that do not contain the .NET Framework 3.5 product enabled will expose these systems to failures to enable .NET Framework 3.5 after the systems are online. For more extensive information about deploying .NET Framework 3.5, see Microsoft .NET Framework 3.5 Deployment Considerations.

  • All updates for Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2 require that update KB 2919355 is installed. We recommend that you install update KB 2919355 on your Windows 8.1-based, Windows RT 8.1-based, or Windows Server 2012 R2-based computer so that you receive updates in the future.

  • 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.

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

  • 4514599 Description of the Security Only Update for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1 and Server 2012 R2 (KB4514599)

How to obtain and install the update

Method 1: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Method 2: Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Select Start, select Administrative Tools, and then select Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then select Action.

  3. Select Import Updates.

  4. WSUS opens a browser window in which you may be prompted to install an ActiveX control. You must install the ActiveX control to continue.

  5. After the ActiveX control is installed, you see the Microsoft Update Catalog screen. Type 4514599 into the Search box, and then select Search.

  6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Select Add to add them to your basket.

  7. After you select all the packages that you require, select View Basket.

  8. To import the packages to your WSUS server, select Import.

  9. After the packages are imported, select Close to return to WSUS.

The updates are now available for installation through WSUS.

Update deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

20190910 Security update deployment information: September 10, 2019

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.


File information
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

 

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

File information

File hash information

File name

SHA1 hash

SHA256 hash

Windows8.1-KB4514338-x64.msu

F9018F98521ECDA7CBC9BE5CAF6524E399A70ABA

BA2F14C551745822125C08D43B9CD78D4C704BC500A93330A5B00D56C8F36453

Windows8.1-KB4514338-x86.msu

30CA68EF424E60164B21C899390CDDFC44558664

23A6F90A56D4382C9D223F5493847C99F2E2E46A5C132FAD8447645717EF7462

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.7.3460.0

5,427,992

25-Jul-2019

23:06

x64

Normidna.nlp

Not applicable

59,342

19-Apr-2018

17:07

Not applicable

Normnfc.nlp

Not applicable

47,076

19-Apr-2018

17:07

Not applicable

Normnfd.nlp

Not applicable

40,566

19-Apr-2018

17:07

Not applicable

Normnfkc.nlp

Not applicable

67,808

19-Apr-2018

17:07

Not applicable

Normnfkd.nlp

Not applicable

61,718

19-Apr-2018

17:07

Not applicable

Clrjit.dll

4.7.3460.0

1,222,640

25-Jul-2019

23:06

x64

Clr.dll

4.7.3460.0

10,381,080

25-Jul-2019

23:06

x64

Compatjit.dll

4.7.3460.0

1,260,312

25-Jul-2019

23:06

x64

Mscordacwks.dll

4.7.3460.0

1,841,432

25-Jul-2019

23:06

x64

Mscordbi.dll

4.7.3460.0

1,622,808

25-Jul-2019

23:06

x64

Mscorlib.ni.dll

4.7.3460.0

22,625,840

25-Jul-2019

23:08

x64

Msvcp120_clr0400.dll

12.0.52519.0

690,008

15-Jul-2019

02:08

x64

Msvcr120_clr0400.dll

12.0.52519.0

993,632

15-Jul-2019

02:08

x64

Peverify.dll

4.7.3460.0

261,608

25-Jul-2019

23:06

x64

Sos.dll

4.7.3460.0

872,936

25-Jul-2019

23:06

x64

Mscorlib.dll

4.7.3460.0

5,646,312

25-Jul-2019

23:08

x86

Normidna.nlp

Not applicable

59,342

19-Apr-2018

17:07

Not applicable

Normnfc.nlp

Not applicable

47,076

19-Apr-2018

17:07

Not applicable

Normnfd.nlp

Not applicable

40,566

19-Apr-2018

17:07

Not applicable

Normnfkc.nlp

Not applicable

67,808

19-Apr-2018

17:07

Not applicable

Normnfkd.nlp

Not applicable

61,718

19-Apr-2018

17:07

Not applicable

Clrjit.dll

4.7.3460.0

523,544

25-Jul-2019

23:08

x86

Clr.dll

4.7.3460.0

7,253,488

25-Jul-2019

23:08

x86

Mscordacwks.dll

4.7.3460.0

1,343,976

25-Jul-2019

23:08

x86

Mscordbi.dll

4.7.3460.0

1,169,896

25-Jul-2019

23:08

x86

Mscorlib.ni.dll

4.7.3460.0

20,552,752

25-Jul-2019

23:08

x86

Msvcp120_clr0400.dll

12.0.52519.0

485,576

15-Jul-2019

02:08

x86

Msvcr120_clr0400.dll

12.0.52519.0

987,840

15-Jul-2019

02:08

x86

Peverify.dll

4.7.3460.0

189,208

25-Jul-2019

23:08

x86

Sos.dll

4.7.3460.0

744,216

25-Jul-2019

23:08

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.7.3460.0

5,646,312

25-Jul-2019

23:08

x86

Normidna.nlp

Not applicable

59,342

19-Apr-2018

17:07

Not applicable

Normnfc.nlp

Not applicable

47,076

19-Apr-2018

17:07

Not applicable

Normnfd.nlp

Not applicable

40,566

19-Apr-2018

17:07

Not applicable

Normnfkc.nlp

Not applicable

67,808

19-Apr-2018

17:07

Not applicable

Normnfkd.nlp

Not applicable

61,718

19-Apr-2018

17:07

Not applicable

Clrjit.dll

4.7.3460.0

523,544

25-Jul-2019

23:08

x86

Clr.dll

4.7.3460.0

7,253,488

25-Jul-2019

23:08

x86

Mscordacwks.dll

4.7.3460.0

1,343,976

25-Jul-2019

23:08

x86

Mscordbi.dll

4.7.3460.0

1,169,896

25-Jul-2019

23:08

x86

Mscorlib.ni.dll

4.7.3460.0

20,552,752

25-Jul-2019

23:08

x86

Msvcp120_clr0400.dll

12.0.52519.0

485,576

15-Jul-2019

02:08

x86

Msvcr120_clr0400.dll

12.0.52519.0

987,840

15-Jul-2019

02:08

x86

Peverify.dll

4.7.3460.0

189,208

25-Jul-2019

23:08

x86

Sos.dll

4.7.3460.0

744,216

25-Jul-2019

23:08

x86

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