Description of the security update for Outlook 2013: August 14, 2018

Applies to: Microsoft Office 2013 Service Pack 1


This security update resolves vulnerabilities in Microsoft Office. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures ADV180021.

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 Determining your Office version).

Improvements and fixes

This security update contains improvements and fixes for the following nonsecurity issues:

  • After you use the Rooms button or the Room Finder add-in to change the conference room for a meeting, the Location of the meeting is not automatically updated to match the newly selected room.
  • Outlook 2013 does not delete the folders on the Internet Message Access Protocol (IMAP) server even though you delete folders in the Internet Message Access Protocol (IMAP) store. In addition, the deleted folders in the .OST file are downloaded again from the Internet Message Access Protocol (IMAP) server. The issue occurs if update KB 4018376 is applied and the IMAPUIDRefactor registry key value is set to 1.

  • Assume that you sign in to Outlook 2013 by using an account that doesn’t use modern authentication in Windows 10. The Security Support Provider Interface (SSPI) authentication prompt will sometimes appear behind other windows and be inaccessible from the keyboard. For more information, see KB 4032226.

  • Add translations in all languages for update KB 4032240 that addresses an issue in which the authentication prompt sometimes appears behind other windows and may be inaccessible to the user. (This translation fix is related to the issue that is described in the previous bullet.)

  • This update fixes a potential crash in third-party MAPI applications.
  • Dynamics CRM functionality is blocked unless you enable all roaming folder homepages by using the EnableRoamingFolderHomepages registry key that is documented in the following article:

Microsoft Dynamics 365 for Outlook is unable to render webpages after installing the October 2017 Microsoft Outlook security update

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 stand-alone package for this update, go to the Microsoft Update Catalog website.

Method 3: Microsoft Download Center

You can get the stand-alone 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 14, 2018.

Security update replacement information

This security update replaces previously released security update KB 4022169.

File hash information

File name SHA1 hash SHA256 hash
outlook2013-kb4032240-fullfile-x86-glb.exe A0DA2911787DCE1310C1A0C524F65BFEE3BC712E 6499086880A2AEE1680612538B9E5CCAF885AD7537AB6AFC9F41655115099584
outlook2013-kb4032240-fullfile-x64-glb.exe E5DBCFEBD8C64AE1049FEC5E23AC2C3552286546 0B6DA84CA9AE5F98E0CD9877B26B435B2BEE745B13DB74D50C4F0167C4C91014

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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: Windows Update: FAQ

Security solutions for IT professionals: TechNet Security Support and Troubleshooting

Help for protecting your Windows-based computer from viruses and malware: Microsoft Secure

Local support according to your country: International Support