MS16-091: Description of the security update for the .NET Framework 4.5.2 in Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2: July 12, 2016

View products that this article applies to.

Summary

This update resolves a vulnerability in the Microsoft .NET Framework. The vulnerability could cause information disclosure if an attacker uploads a specially crafted XML file to a web-based application. To learn more about this vulnerability, see Microsoft Security Bulletin MS16-091.

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 the Control Panel” section of this Safety & Security Center article.

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

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 security update 3163291

Update deployment information

For deployment information about this update, see Microsoft Knowledge Base Article 3170048.

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 does not replace any previously released update.

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File information

File hashPackage name	Package hash SHA1	Package hash SHA2
Windows8.1-KB3163291-arm.msu	58D4A70FB65F5361DBCB9BB99034FCB5F121B3F4	853F435650CADF32C8659BC8C8A62C0EE369C377E8099CE71421E24A2E670ED0
Windows8.1-KB3163291-x64.msu	513564016A2F56E7E885BBA2F6109897AF35FFCA	F585AAE696B9259ED014200F6DF46FD67CA69DA53EDF2B4FC72551556435CFB3
Windows8.1-KB3163291-x86.msu	2CBCFE94A765F936C0BEA09353425BAED0289DA4	771A2146CD4C4107742C75565BC470DA4A37B75F6EB0E8381DB87C1F5EA29CC1
Windows8.1-KB3163291-x86.msu	2CBCFE94A765F936C0BEA09353425BAED0289DA4	771A2146CD4C4107742C75565BC470DA4A37B75F6EB0E8381DB87C1F5EA29CC1
Windows8.1-KB3163291-x64.msu	513564016A2F56E7E885BBA2F6109897AF35FFCA	F585AAE696B9259ED014200F6DF46FD67CA69DA53EDF2B4FC72551556435CFB3
Windows8.1-KB3163291-x64.msu	513564016A2F56E7E885BBA2F6109897AF35FFCA	F585AAE696B9259ED014200F6DF46FD67CA69DA53EDF2B4FC72551556435CFB3
Windows8.1-KB3163291-x64.msu	513564016A2F56E7E885BBA2F6109897AF35FFCA	F585AAE696B9259ED014200F6DF46FD67CA69DA53EDF2B4FC72551556435CFB3
File attributesThe 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 systemsFile name	File version	File size	Date	Time
system.data.resources.dll	4.0.30319.36341	401,624	24-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	373,464	24-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	370,392	24-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	380,632	24-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	454,360	24-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	373,976	24-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	367,320	24-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	379,096	24-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	392,912	24-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	385,744	24-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	373,464	24-May-2016	13:16
system.data.resources.dll	4.0.30319.36341	397,528	24-May-2016	13:16
system.data.resources.dll	4.0.30319.36341	382,168	24-May-2016	13:16
system.data.resources.dll	4.0.30319.36341	364,248	24-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	377,048	24-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	381,144	24-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	370,904	24-May-2016	13:18
system.data.resources.dll	4.0.30319.36341	374,488	24-May-2016	13:18
system.data.resources.dll	4.0.30319.36341	437,464	24-May-2016	13:10
system.data.resources.dll	4.0.30319.36341	367,320	24-May-2016	13:10
system.data.resources.dll	4.0.30319.36341	368,856	24-May-2016	13:10
system.data.resources.dll	4.0.30319.36341	350,424	24-May-2016	13:10
system.data.resources.dll	4.0.30319.36341	352,984	24-May-2016	13:12
msvcp120_clr0400.dll	12.0.52361.36361	536,768	25-May-2016	13:22
msvcr120_clr0400.dll	12.0.52361.36361	875,712	25-May-2016	13:22
system.data.dll	4.0.30319.36361	3,209,392	25-May-2016	13:22
For all supported x64-based versions of systemsFile name	File version	File size	Date	Time
—	—	—	—	—
msvcp120_clr0400.dll	12.0.52361.36361	678,600	25-May-2016	13:12
msvcr120_clr0400.dll	12.0.52361.36361	869,576	25-May-2016	13:12
system.data.dll	4.0.30319.36361	3,238,064	25-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	401,624	04-Mar-2016	14:11
system.data.resources.dll	4.0.30319.36341	373,464	04-Mar-2016	14:11
system.data.resources.dll	4.0.30319.36341	370,392	04-Mar-2016	14:11
system.data.resources.dll	4.0.30319.36341	380,632	04-Mar-2016	14:11
system.data.resources.dll	4.0.30319.36341	454,512	25-May-2016	13:10
system.data.resources.dll	4.0.30319.36341	373,976	25-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	367,320	19-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	379,096	04-Mar-2016	14:11
system.data.resources.dll	4.0.30319.36341	392,920	19-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	385,752	19-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	373,464	19-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	397,528	19-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	382,160	19-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	364,248	19-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	377,048	19-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	381,144	19-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	370,904	19-May-2016	13:13
system.data.resources.dll	4.0.30319.36341	374,488	19-May-2016	13:13
system.data.resources.dll	4.0.30319.36341	437,464	19-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	367,320	19-May-2016	13:14
system.data.resources.dll	4.0.30319.36341	368,856	19-May-2016	13:14
system.data.resources.dll	4.0.30319.36341	350,424	25-May-2016	13:09
system.data.resources.dll	4.0.30319.36341	352,984	04-Mar-2016	14:11
msvcp120_clr0400.dll	12.0.52361.36361	536,768	25-May-2016	13:22
msvcr120_clr0400.dll	12.0.52361.36361	875,712	25-May-2016	13:22
system.data.dll	4.0.30319.36361	3,209,392	25-May-2016	13:22
For all supported ARM-based versions of systemsFile name	File version	File size	Date	Time
—	—	—	—	—
msvcp120_clr0400.dll	12.0.52361.36361	602,128	25-May-2016	13:11
msvcr120_clr0400.dll	12.0.52361.36361	634,384	25-May-2016	13:11
system.data.dll	4.0.30319.36361	3,179,512	25-May-2016	13:11
system.data.resources.dll	4.0.30319.36341	403,488	24-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	375,488	24-May-2016	13:14
system.data.resources.dll	4.0.30319.36341	372,256	24-May-2016	13:14
system.data.resources.dll	4.0.30319.36341	382,656	24-May-2016	13:14
system.data.resources.dll	4.0.30319.36341	456,224	13-Mar-2016	22:37
system.data.resources.dll	4.0.30319.36341	376,000	13-Mar-2016	22:39
system.data.resources.dll	4.0.30319.36341	369,184	24-May-2016	13:16
system.data.resources.dll	4.0.30319.36341	381,120	24-May-2016	13:12
system.data.resources.dll	4.0.30319.36341	394,784	24-May-2016	13:16
system.data.resources.dll	4.0.30319.36341	387,776	24-May-2016	13:16
system.data.resources.dll	4.0.30319.36341	375,480	25-May-2016	13:16
system.data.resources.dll	4.0.30319.36341	399,392	25-May-2016	13:16
system.data.resources.dll	4.0.30319.36341	384,192	25-May-2016	13:16
system.data.resources.dll	4.0.30319.36341	366,272	25-May-2016	13:09
system.data.resources.dll	4.0.30319.36341	378,912	25-May-2016	13:09
system.data.resources.dll	4.0.30319.36341	383,008	25-May-2016	13:09
system.data.resources.dll	4.0.30319.36341	372,920	14-Mar-2016	15:30
system.data.resources.dll	4.0.30319.36341	376,352	14-Mar-2016	15:31
system.data.resources.dll	4.0.30319.36341	439,488	14-Mar-2016	15:22
system.data.resources.dll	4.0.30319.36341	369,184	14-Mar-2016	15:23
system.data.resources.dll	4.0.30319.36341	370,880	14-Mar-2016	15:23
system.data.resources.dll	4.0.30319.36341	352,440	04-Mar-2016	14:12
system.data.resources.dll	4.0.30319.36341	354,848	24-May-2016	13:12

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How to obtain help and support for this security update

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 4.5.2 when used with:
  • Windows Server 2012 R2
  • Windows 8.1
  • Windows RT 8.1