Description of the security update for Office Web Apps Server 2013: October 13, 2020

Applies to: Office Web Apps Server 2013


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 the following security advisories:

Note To apply this security update, you must have the release version of Service Pack 1 for Microsoft Office Web Apps Server 2013 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: October 13, 2020.

Security update replacement information

This security update doesn't replace any previously released update.

File hash information

File name SHA1 hash SHA256 hash
WacServer2013-kb4486689-fullfile-x64-glb.exe 8EC5C5741302D32F2A00A1297F20ACA49E46E98F A993A200553110E4DA2B34ECFCDAF28076A6FE2D4F436E9ADF35CFEF55C2CAEE

File information

Download the list of files that are included in security update 4486689.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security