Applies To.NET Framework 3.5.1

View products that this article applies to.

Summary

This update resolves vulnerabilities in Microsoft .NET Framework. The vulnerabilities could allow remote code execution if a user visits a specially crafted website or opens a specially crafted document. This update addresses the vulnerabilities by correcting how the Windows font library handles embedded fonts. To learn more about this vulnerability, see Microsoft Security Bulletin MS16-120.

Important

  • 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 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.

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

On your WSUS server, follow these steps:

  1. Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then click Action.

  3. Click Import Updates.

  4. If WSUS opens a browser window in which you are prompted to install an ActiveX control, install the control to continue.Note After the ActiveX control is installed, the Microsoft Update Catalog screen opens.

  5. Enter 3188740 in the Search box, and then click Search.

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

  7. When you have selected all the packages that you require, click View Basket.

  8. Click Import to import the packages into your WSUS server.

  9. After the packages have been imported, click Close to return to WSUS.

The updates are now available for installation through WSUS.

Update deployment informationFor deployment information about this update, see Microsoft Knowledge Base Article 3192884.

Update removal informationNote 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 informationThis 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 informationThis update does not replace any previously released update.

File hash

File name

SHA1 hash

SHA256 hash

Windows6.1-KB3188740-x86.msu

4E2D6EFAC43778E3DD488A73C8EF67C2D157032F

83D524AB8D91B412E85E1A96BE2F2D2B3586EF598646A9B8A4BCAD374161BDCE

Windows6.1-KB3188740-x64.msu

EDF58C81207FBA51EE8BF576092DA161EA7BF7E6

79AEB032A8BF4920CD01B6B89E5517BAFBE4EF0D00A7235A4999A90F1EDDE6FF

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

3.0.6920.8720

5,283,840

01-Sep-2016

13:05

reachframework.dll

3.0.6920.8720

532,480

01-Sep-2016

13:05

windowsbase.dll

3.0.6920.8720

1,253,376

01-Sep-2016

13:05

presentationcore.dll

3.0.6920.8720

4,222,976

01-Sep-2016

13:05

presentationfontcache.exe.config

161

23-Mar-2016

22:38

wpfgfx_v0300.dll

3.0.6920.8720

1,737,888

01-Sep-2016

13:05

system.printing.dll

3.0.6920.8720

372,736

01-Sep-2016

13:05

penimc.dll

3.0.6920.8720

68,752

01-Sep-2016

13:05

presentationframework.dll

3.0.6920.8720

5,283,840

01-Sep-2016

13:05

presentationhostdll.dll

3.0.6920.8720

131,248

01-Sep-2016

13:05

reachframework.dll

3.0.6920.8720

532,480

01-Sep-2016

13:05

windowsbase.dll

3.0.6920.8720

1,253,376

01-Sep-2016

13:05

For all supported x64-based versions of systems

File name

File version

File size

Date

Time

presentationcore.dll

3.0.6920.8720

4,006,400

01-Sep-2016

13:06

presentationfontcache.exe.config

161

23-Mar-2016

22:39

wpfgfx_v0300.dll

3.0.6920.8720

2,256,032

01-Sep-2016

13:06

system.printing.dll

3.0.6920.8720

358,400

01-Sep-2016

13:06

penimc.dll

3.0.6920.8720

85,648

01-Sep-2016

13:06

presentationframework.dll

3.0.6920.8720

4,640,768

01-Sep-2016

13:06

presentationhostdll.dll

3.0.6920.8720

172,208

01-Sep-2016

13:06

reachframework.dll

3.0.6920.8720

532,480

01-Sep-2016

13:06

windowsbase.dll

3.0.6920.8720

1,114,112

01-Sep-2016

13:06

presentationframework.dll

3.0.6920.8720

5,283,840

01-Sep-2016

13:05

reachframework.dll

3.0.6920.8720

532,480

01-Sep-2016

13:05

windowsbase.dll

3.0.6920.8720

1,253,376

01-Sep-2016

13:05

presentationcore.dll

3.0.6920.8720

4,222,976

01-Sep-2016

13:05

presentationfontcache.exe.config

161

23-Mar-2016

22:38

wpfgfx_v0300.dll

3.0.6920.8720

1,737,888

01-Sep-2016

13:05

system.printing.dll

3.0.6920.8720

372,736

01-Sep-2016

13:05

penimc.dll

3.0.6920.8720

68,752

01-Sep-2016

13:05

presentationframework.dll

3.0.6920.8720

5,283,840

01-Sep-2016

13:05

presentationhostdll.dll

3.0.6920.8720

131,248

01-Sep-2016

13:05

reachframework.dll

3.0.6920.8720

532,480

01-Sep-2016

13:05

windowsbase.dll

3.0.6920.8720

1,253,376

01-Sep-2016

13:05

Help for installing updates: Support for Microsoft UpdateSecurity solutions for IT professionals: TechNet Security Troubleshooting and SupportHelp for protecting your Windows-based computer from viruses and malware: Virus Solution and Security CenterLocal support according to your country: International Support

Applies toThis article applies to the following:

  • Microsoft .NET Framework 3.5.1 when used with:

    • Windows Server 2008 R2 Service Pack 1

    • Windows 7 Service Pack 1

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