Description of the security update for Outlook 2016: February 13, 2018

Applies to: Outlook 2016


This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2018-0850 and Microsoft Common Vulnerabilities and Exposures CVE-2018-0852.

Note To apply this security update, you must have the release version of Outlook 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 Determining your Office version).

Improvements and fixes

This security update contains the following nonsecurity improvements and fixes:
  • Translates some terms in multiple languages to make sure that the meaning is accurate.
  • Fixes translation for the string “-----Original Appointment-----” in Chinese Simplified version of Outlook 2016.
  • Fixes an issue in which some attachments to plain text messages are removed when you forward the message.
  • Fixes the following issues:

    • When you drag an email message to a location outside Outlook by right-clicking and then selecting Move here, Outlook copies the message instead of moving it.

    • When you try to open a message that contains external content, Outlook 2016 freezes if you don’t have Internet access.

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: February 13, 2018.

Security update replacement information

This security update replaces previously released security update KB 4011626.

File hash information

Package name Package hash SHA 1 Package hash SHA 2
outlook2016-kb4011682-fullfile-x64-glb.exe 94B8AA102F60419DD6A38DC375B790BE59E9F4B1 AE03DE06CB97EF77B39A94B29DECFDAB674DF2D6C40BE27A7674EB27579BFF76
outlook2016-kb4011682-fullfile-x86-glb.exe B88650AEAC3DF11DC87B51EA22DC8F47581F0A68 90A749FADAEC8549F6C94249748181BE6852EAF83B74F471D3FB920AE591ACF3

File information

The English version of this security update has the file attributes (or later file 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: Windows Update FAQ

Security solutions for IT professionals: 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

Propose a feature or provide feedback on Office Core: Office User Voice portal