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MS16-016: Security update for WebDAV to address elevation of privilege: February 9, 2016

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Summary

This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if an attacker uses the Microsoft Web Distributed Authoring and Versioning (WebDAV) client to send specifically crafted input to a server.

To learn more about the vulnerability, see Microsoft Security Bulletin MS16-016.

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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.
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.

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Additional information about this security update

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

3124280 MS16-016: Description of the security update for WebDAV: February 9, 2016
3135174 Cumulative update for Windows 10: February 9, 2016
3135173 Cumulative update for Windows 10 Version 1511: February 9, 2016

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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.

Method 2: Microsoft Download Center

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 MS16-016 that corresponds to the version of Windows that you are running.

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More Information

Security update deployment information

Windows Vista (all editions)

Reference table

The following table contains the security update information for this software.

Security update file names	For all supported 32-bit editions of Windows Vista: Windows6.0-KB3124280-x86.msu
	For all supported x64-based editions of Windows Vista: Windows6.0-KB3124280-x64.msu
Installation switches	See Microsoft Knowledge Base Article 934307
Restart requirement	In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, you receive a message that advises you to restart.
Removal information	WUSA.exe does not support uninstall of updates. To uninstall an update that is installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and then select from the list of updates.
File information	See Microsoft Knowledge Base Article 3124280
Registry key verification	Note A registry key does not exist to validate the presence of this update.

Windows Server 2008 (all editions)

Reference table

The following table contains the security update information for this software.

Security update file names	For all supported 32-bit editions of Windows Server 2008: Windows6.0-KB3124280-x86.msu
	For all supported x64-based editions of Windows Server 2008: Windows6.0-KB3124280-x64.msu
Installation switches	See Microsoft Knowledge Base Article 934307
Restart requirement	In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, you receive a message that advises you to restart.
Removal information	WUSA.exe does not support uninstall of updates. To uninstall an update that is installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and then select from the list of updates.
File information	See Microsoft Knowledge Base Article 3124280
Registry key verification	Note A registry key does not exist to validate the presence of this update.

Windows 7 (all editions)

Reference table

The following table contains the security update information for this software.

Security update file name	For all supported 32-bit editions of Windows 7: Windows6.1-KB3124280-x86.msu
	For all supported x64-based editions of Windows 7: Windows6.1-KB3124280-x64.msu
Installation switches	See Microsoft Knowledge Base Article 934307
Restart requirement	In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, you receive a message that advises you to restart.
Removal information	To uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, and under Windows Update, click View installed updates, and then select from the list of updates.
File information	See Microsoft Knowledge Base Article 3124280
Registry key verification	Note A registry key does not exist to validate the presence of this update.

Windows Server 2008 R2 (all editions)

Reference table

The following table contains the security update information for this software.

Security update file name	For all supported x64-based editions of Windows Server 2008 R2: Windows6.1-KB3124280-x64.msu
Installation switches	See Microsoft Knowledge Base Article 934307
Restart requirement	In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, you receive a message that advises you to restart.
Removal information	To uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, and under Windows Update, click View installed updates, and then select from the list of updates.
File information	See Microsoft Knowledge Base Article 3124280
Registry key verification	Note A registry key does not exist to validate the presence of this update.

Windows 8.1

Reference table

The following table contains the security update information for this software.

Security update file name	For all supported 32-bit editions of Windows 8.1: Windows8.1-KB3124280-x86.msu
	For all supported x64-based editions of Windows 8.1: Windows8.1-KB3124280-x64.msu
Installation switches	See Microsoft Knowledge Base Article 934307
Restart requirement	In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, you receive a message that advises you to restart.
Removal information	To uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, click Windows Update, and under See also, click Installed updates, and then select from the list of updates.
File information	See Microsoft Knowledge Base Article 3124280
Registry key verification	Note A registry key does not exist to validate the presence of this update.

Windows Server 2012 and Windows Server 2012 R2 (all editions)

Reference table

The following table contains the security update information for this software.

Security update file name	For all supported editions of Windows Server 2012: Windows8-RT-KB3124280-x64.msu
	For all supported editions of Windows Server 2012 R2: Windows8.1-KB3124280-x64.msu
Installation switches	See Microsoft Knowledge Base Article 934307
Restart requirement	In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, you receive a message that advises you to restart.
Removal information	To uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, click Windows Update, and under See also, click Installed updates, and then select from the list of updates.
File information	See Microsoft Knowledge Base Article 3124280
Registry key verification	Note A registry key does not exist to validate the presence of this update.

Windows RT 8.1

Reference table

The following table contains the security update information for this software.

Deployment	These updates are available through Windows Update only.
Restart Requirement	In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, you receive a message that advises you to restart.
Removal Information	Click Control Panel, click System and Security, click Windows Update, and under See also, click Installed updates, and then select from the list of updates.
File Information	See Microsoft Knowledge Base Article 3124280

Windows 10 (all editions)

Reference table

The following table contains the security update information for this software.

Security update file name	For all supported 32-bit editions of Windows 10: Windows10.0-KB3135174-x86.msu
	For all supported x64-based editions of Windows 10: Windows10.0-KB3135174-x64.msu
	For all supported 32-bit editions of Windows 10 Version 1511: Windows10.0-KB3135173-x86.msu
	For all supported x64-based editions of Windows 10 Version 1511: Windows10.0-KB3135173-x64.msu
Installation switches	See Microsoft Knowledge Base Article 934307
Restart requirement	A system restart is required after you apply this security update.
Removal information	To uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, click Windows Update, and under See also, click Installed updates, and then select from the list of updates.
File information	See Microsoft Knowledge Base Article 3135174 See Microsoft Knowledge Base Article 3135173
Registry key verification	Note A registry key does not exist to validate the presence of this update.

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

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Applies to:

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Keywords: kb, atdownload, kbbug, kbexpertiseinter, kbfix, kblangall, kbmustloc, kbsecbulletin, kbsecreview, kbsecurity, kbsecvulnerability, kbsurveynew

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Article Info

Article ID	:	3136041
Revision	:	1
Created on	:	1/7/2017
Published on	:	2/9/2016
Exists online	:	False
Views	:	189