Description of the security update for Office 2016: April 14, 2020

Applies to: Office Professional Plus 2016Office Professional 2016Office Standard 2016


This security update resolves remote code execution vulnerabilities that exist in Microsoft Access software when the software fails to properly handle objects in memory. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2020-0991 and Microsoft Common Vulnerabilities and Exposures CVE-2020-0961.

Note To apply this security update, you must have the release version of Office 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 a fix for the following nonsecurity issue:
  • An application crashes when using Open Database Connectivity (ODBC) APIs to use multiple connections with a Microsoft Access or Excel Driver.

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: April 14, 2020.

Security update replacement information

This security update replaces previously released security update 4484180.

File hash information

File name SHA1 hash SHA256 hash
ace2016-kb4484287-fullfile-x86-glb.exe 53D6FB2318A7840CCE3127A7DC80D1E4EC5D58B4 8E7E8941D6B330EB98155F34F14EEE7399FB375BE878F73E06CB02786E1EC840
ace2016-kb4484287-fullfile-x64-glb.exe E3FF5A843D467194D3A3A52902228C8E6F65AE93 C55560DA0AD77CEECC1EC1B271A52236661ECA2B0B2B8447F9057E27DC9D0E6E

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