Description of the security update for Outlook 2010: July 14, 2020

Applies to: Microsoft Office 2010 Service Pack 2


This security update resolves a remote code execution vulnerability that exists in Microsoft Outlook software if it does not correctly handle objects in memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2020-1349.

Note To apply this security update, you must have the release version of Service Pack 2 for Office 2010 installed on the computer.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2010. It doesn't apply to the Office 2010 Click-to-Run editions, such as Microsoft Office 2010 Home and Student (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: July 14, 2020.

Security update replacement information

This security update replaces previously released security update 4484284.

File hash information

File name SHA1 hash SHA256 hash
outlookloc2010-kb4484382-fullfile-x86-glb.exe 394FE6492288F456EB156B4955D189A591193953 54F15144E7135E191CF6C6538A94C9D46B11813ED248F4F180622614BC5242E2
outlookloc2010-kb4484382-fullfile-x64-glb.exe 6B595DB99EA5E75BE632A94DDC42979E2014EF3D 9D0EF037757E06C89150AE1D170A307F4878A4D5070C2E055BAD37E70F27710B

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