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.
This security update contains improvements and fixes for the following nonsecurity issue:
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.
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
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.
For deployment information about this update, see security update deployment information: September 12, 2017.
This security update doesn't replace any previously released update.
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
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| |
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