Description of the security update for Office 2016: October 10, 2017

Summary

This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see Microsoft advisory ADV170017.

Note To apply this security update, you must have the release version of Office 2016 installed on the computer.Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn’t apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (Determining your Office version)

How to get and install the update

Method 1: Microsoft Update

This update is available from Microsoft 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 Windows Update: FAQ.

Method 2: Microsoft Update Catalog

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

Method 3: Microsoft Download Center

You can get the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

• Download security update 2920723 for the 32-bit version of Office 2016
• Download security update 2920723 for the 64-bit version of Office 2016

More Information

Security update deployment information

For deployment information about this update, see security update deployment information: October 10, 2017.

Security update replacement information

This security update doesn’t replace any previously released update.

File hash information

Package name	Package hash SHA 1	Package hash SHA 2
osetup2016-kb2920723-fullfile-x64-glb.exe	8BA06728EE913FA3B7FA3A5CC2704B1A23BC7FE2	287E39626D7154DA7823DBEC835CBCD00D56ADE7C996878373DBD673ED5DBC31
osetup2016-kb2920723-fullfile-x86-glb.exe	E58988729B3965495BC6437507F2F6BB9B9B8C04	4854693BAFF85B530D5FFDD179A9525FA2CE0050BA916CDCDCD4AF531CF17882

File information

The English version of this security update has the file attributes (or later file attributes) that are listed in the following table. 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 Office 2016

File identifier	File name	File version	File size	Date	Time
osetup.dll	osetup.dll	16.0.4600.1000	9854160	14-Sep-17	12:59

For all supported x64-based versions of Office 2016

File identifier	File name	File version	File size	Date	Time
osetup.dll	osetup.dll	16.0.4600.1000	12366528	14-Sep-17	01:00

How to get help and support for this security update

Help for installing updates: Windows Update FAQSecurity solutions for IT professionals: Security Support and TroubleshootingHelp for protecting your Windows-based computer from viruses and malware: Microsoft SecureLocal support according to your country: International SupportPropose a feature or provide feedback on Office: Office User Voice portal