Description of the security update for Office 2016: September 12, 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 Common Vulnerabilities and Exposures CVE-2017-8630.

Note To apply this security update, you must have the release version of Office 2016 installed on the computer.

Improvements and fixes

This security update contains improvements and fixes for the following nonsecurity issue:

• After you export .emf files as .pdf files in Visio 2016, the line weights are displayed incorrectly.

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 the security update KB3203474 for the 32-bit version of Office 2016
• Download the security update KB3203474 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: September 12, 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
oart2016-kb3203474-fullfile-x86-glb.exe	0E7DE69E6EB31F57D32DE1740ACD1379643E60B3	2E46F10D02330F5BB7D212E6C3F23E26D382A438F0B48705ADCE60EF96DD7E47
oart2016-kb3203474-fullfile-x64-glb.exe	4B1D8E7F5848594D5E6DAF30C3C09DD6685294B1	2AAE5B01F75C0834B4A258A5EFC09B369CFBFEACD8A677797F382819602EFF7F

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 times for these files are listed in Coordinated Universal Time (UTC). The dates and 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 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
—|—|—|—|—|—
igx.dll| igx.dll| 16.0.4588.1000| 9744568| 16-Aug-17| 11:54
oart.dll| oart.dll| 16.0.4588.1000| 12532944| 16-Aug-17| 11:54
oartodf.dll| oartodf.dll| 16.0.4588.1000| 1834720| 16-Aug-17| 11:54

For all supported x64-based versions of Office 2016File identifier	File name	File version	File size	Date	Time
igx.dll	igx.dll	16.0.4588.1000	11260600	16-Aug-17	11:56
xlsrv.ecs.igx.dll	igx.dll	16.0.4588.1000	11260600
oart.dll	oart.dll	16.0.4588.1000	18272464	16-Aug-17	11:56
xlsrv.ecs.oart.dll	oart.dll	16.0.4588.1000	18272464
oartodf.dll	oartodf.dll	16.0.4588.1000	3311328	16-Aug-17	11:56
xlsrv.ecs.oartodf.dll	oartodf.dll	16.0.4588.1000	3311328

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