Description of the security update for Excel 2016: December 10, 2019

Applies to: Excel 2016


This security update resolves an information disclosure vulnerability that exists if Microsoft Excel incorrectly discloses the contents of its memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2019-1464.

Note To apply this security update, you must have the release version of Excel 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?).

Known issues

You may receive the following error message when you open a file that is protected by Information Rights Management:

To resolve this issue, install Office update 3178666.

Improvements and fixes

This security update contains a fix for the following nonsecurity issue:
  • The Find and Replace features on group-selected worksheets do not work.

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.

Download icon
Download security update 4484179 for the 32-bit version of Excel 2016

Download icon
Download security update 4484179 for the 64-bit version of Excel 2016

More information

Security update deployment information

For deployment information about this update, see security update deployment information: December 10, 2019.

Security update replacement information

This security update replaces previously released security update 4484144.

File hash information

File name SHA1 hash SHA256 hash
excel2016-kb4484179-fullfile-x86-glb.exe 8566EC35F71FA902CF973F475093236AF52B3680 EC8999F0A492ABC02DC2089E2D098E934FC10469741A29A55EBF2CF735BC7771
excel2016-kb4484179-fullfile-x64-glb.exe 6C6821E7FB1AEF7FBEBB60F67F5BF38DDC71699C 053D7B50E768BFE0306B92D2852BF94E5377CFFE11019FC3AA28A933760D3B56

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.

How to get help and support for this security update

Help for installing updates: Protect yourself online

Help for protecting your Windows-based computer from viruses and malware: Microsoft Security

Local support according to your country: International Support