Description of the security update for Office 2016: September 10, 2019

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


This security update resolves a remote code execution vulnerability that exists if the Windows Jet Database Engine incorrectly handles objects in memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2019-1246.

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:
  • It may take longer than in earlier versions of Office to refresh PivotTables that are connected to external data, such as Access databases or other Excel workbooks on a network share.

Known issues

After installing this update, you may see a "File failed to upload" error when saving files to a network location. To fix this issue, install KB 3085368.

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 10, 2019.

Security update replacement information

This security update replaces previously released security update 4475538.

File hash information

File name SHA1 hash SHA256 hash
ace2016-kb4475591-fullfile-x86-glb.exe 2C4D7C01ACDEDF27BE295C3E0EC4004D8E601379 D53E8D126D997786F7A92C444803486D79EFD40655538226EFE89694F379F7B8
ace2016-kb4475591-fullfile-x64-glb.exe B133B170143DFBA8DC8FE84E00B17DDE952AFC84 C3BFD7C0A44F9E38C695D3AF8DFE64989B17BE0A0F4F3684B093EE98D59FEE47

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