Description of the security update for Word 2016: September 8, 2020

Applies to: Word 2016


This security update resolves a remote code execution vulnerability that exists in Microsoft Word if the software does not correctly handle objects in memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2020-1218.

Note To apply this security update, you must have the release version of Word 2016 installed on the computer.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home (see What version of Office am I using?).

Improvements and fixes

This security update contains the following fix:
  • Fixes a performance issue that can occur when you switch from another application to Outlook.

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: September 8, 2020.

Security update replacement information

This security update replaces previously released security update 4484474.

File hash information

File name SHA1 hash SHA256 hash
word2016-kb4484510-fullfile-x86-glb.exe 3189428DDAFE4817D0B5904E4E76D9502DD4B55A 4FE5D65B881803918FC90FD22A92296B05868FE69EECB6D404BDBFAA3E9A2BA4
word2016-kb4484510-fullfile-x64-glb.exe C49918ADFA2AFDEBDA43D8B4C0DABBC23F742506 E31BCDAEBB839938D41CE5B30E0AFA63F47F487936EE64145995CCCFE873967E

File information

The English (United States) version of this software update installs files that have the 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.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security