Description of the security update for Office Online Server: September 12, 2017

Applies to: Microsoft Office Online Server

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-2017-8631, Microsoft Common Vulnerabilities and Exposures CVE-2017-8742, and Microsoft Common Vulnerabilities and Exposures CVE-2017-8743.

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

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.

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
wacserver2016-kb3213658-fullfile-x64-glb.exe 96C7A52525FBF81D7F11C05FEB3591A53A2B729F BA25222B68EFB64D9B9B82B7C1537B4B672AF590D9A67445B9DD659B9784C79E

File information

For the list of files that cumulative update KB 3213658 contains, download the file information for update 3213658.

How to get help and support for this security update


Help for installing updates: Windows Update FAQ

Security solutions for IT professionals: Security Support and Troubleshooting

Help for protecting your Windows-based computer from viruses and malware: Microsoft Secure

Local support according to your country: International Support

Propose a feature or provide feedback on SharePoint: SharePoint User Voice portal