Description of the security update for Office Online Server: November 10, 2020

Applies to: Office Online Server


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-2020-17064 and Microsoft Common Vulnerabilities and Exposures CVE-2020-17065.

Note To apply this security update, you must have the release version of Microsoft 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 standalone package for this update, go to the Microsoft Update Catalog website.

Method 3: Microsoft Download Center

You can get the standalone 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: November 10, 2020.

Security update replacement information

This security update replaces previously released security update 4486674.

File hash information

File name SHA1 hash SHA256 hash
wacserver2019-kb4486713-fullfile-x64-glb.exe 739299592F65EB7FD1890808E97C3AF8430D9B4B 6C3166E5A7EE4E21F27D834FE23E31AABA1D33C7A77FDD5D7F2B0163B3C839D1

File information

Download the list of files that are included in security update 4486713.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security