Description of the security update for Project 2016: June 9, 2020

Applies to: Project Professional 2016Project Standard 2016


This security update resolves an information disclosure vulnerability that exists when Microsoft Project software reads out-of-bound memory. This occurs because of an uninitialized variable that could disclose the contents of memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2020-1322.

Note To apply this security update, you must have the release version of Project 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:
  • Resetting or updating a baseline may change timephased Baseline Budget Cost or Work fields, and the baseline may not reflect the correct budget values.

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: June 9, 2020.

Security update replacement information

This security update replaces previously released security update 4484269.

File name SHA1 hash SHA256 hash
project2016-kb4484399-fullfile-x86-glb.exe E65001F9842069E0BC424F0DA5130C99EEF48857 A81390039556509D3148E6E254C5870F4A3958FCF98F4393AD6C4B02F4F4AF12
project2016-kb4484399-fullfile-x64-glb.exe 1D7968ADEC96311CC203447BA8A405A93185597B 5F54DAB609B2824F66E2055379A29CED0992766CC8E87A88A74E9C9AD4755F4A

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.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security