Description of the security update for Office 2016: August 13, 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-2019-1155.

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: August 13, 2019.

Security update replacement information

This security update replaces previously released security update 4464551.

File hash information

File name SHA1 hash SHA256 hash
ace2016-kb4475538-fullfile-x86-glb.exe 93A7B4014E0800B7E363320CD0085FE3A16CDF87 F25828DBD22265AD6019E6A5164B4B1A4DA200FFB885BCBE16C9D9E70B5155E9
ace2016-kb4475538-fullfile-x64-glb.exe 1A6B9B384AD212EAC5158F4C7918A9577CDE3E6F F46C651C6083B894A7079B40B8F7038A19E40F52C3F0290F859AFE37E31051C9

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