Description of the security update for Excel 2016: October 8, 2019

Applies to: Excel 2016


This security update resolves a remote code execution vulnerability that exists in Microsoft Excel software when the software fails to correctly handle objects in memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2019-1327 and Microsoft Common Vulnerabilities and Exposures CVE-2019-1331.

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

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 8, 2019.

Security update replacement information

This security update replaces previously released security update 4475579.

File hash information

File name SHA1 hash SHA256 hash
excel2016-kb4484112-fullfile-x86-glb.exe D9F4D8B020F931AA0322870C87D35DAACBC2855B 94F10953D5AC03865B8A91AACF15A033E99307221142108B02DDCCAEFA566228
excel2016-kb4484112-fullfile-x64-glb.exe 4D5B6A5446C69794EA8FDEF4CA9B22B923D60164 50F6A954FE646A0793F2890FE0DA4308EE1512C087EB44340BC0881B76D962D6

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