This security update resolves a vulnerability in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2017-11826.
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 Catalog
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
Method 2: 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.
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 replaces previously released security update KB 3213658.
File hash information
Package Hash SHA 1
Package Hash SHA 2
For the list of files that cumulative update 3213659 contains, download the file information for update 3213659.
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