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

Applies to: Office Professional Plus 2016Office Professional 2016Office Standard 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-2019-1331.

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?).

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 4461539.

File hash information

File name SHA1 hash SHA256 hash
graph2016-kb4475554-fullfile-x86-glb.exe 9CC6F2C13E51FB444C0530D2E3CAD8C9A56E37C6 5A28EB33E95E52F35E54E2EBE20B440EFB3EF2870057FD2FE61F3EF45D221F50
graph2016-kb4475554-fullfile-x64-glb.exe 3EC12754783823277918C89999EB6237A525C070 00ECC26FD1B426903870235DFB1551A6A05E96020D06A1C62EFBC44E2F2C9DA3

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