Description of the security update for Outlook 2013: July 14, 2020

Applies to: Microsoft Office 2013 Service Pack 1Outlook 2013


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 1 for Microsoft Office 2013 installed on the computer.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2013. It doesn't apply to the Office 2013 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: July 14, 2020.

Security update replacement information

This security update replaces previously released security update 4484281.

File hash information

File name SHA1 hash SHA256 hash
outlook2013-kb4484363-fullfile-x86-glb.exe 938DB3205873F11E6976B7DCEA1801E2E003C959 BDA274D5610FB081642B4C8A065FCB4F76ACC84EED2D06B0790E88D78E9E0BDB
outlook2013-kb4484363-fullfile-x64-glb.exe 4AC31E6440EA82AF9F71A2CFC7294F30AFF3401C ABEDA0BF77036CC6EFA00154505486E7A51851AC41A410A20C4D894A20F4FD2F

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