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-2018-8310.
Note To apply this security update, you must have the release version of Word 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 improvements and fixes for the following nonsecurity issues:
When you drag and drop an attachment to an email message in Outlook 2016, the case of the file name extension of the attachment is changed unexpectedly. This issue occurs if the last character of the file name is capitalized. For example, filE.docx may be displayed as filE.DOCX.
Assume that you apply Hidden formatting to a Word table (by using the Hidden effect in the Font dialog box), and that the table contains a bookmark, some text, and a URL in a Word 2013 document. After you close and then reopen the document, the table cell and bookmark are displayed unexpectedly.
Memory leaks when you open and close a document that contains Embedded Object Linking and Embedding (OLE) objects in Word 2016.
When you work with a document that contains a custom property on a SharePoint Server, the Getting list of available content types and properties dialog box appears at random times and prevents you from working with the document until it disappears.
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.
Security update deployment information
For deployment information about this update, see security update deployment information: July 10, 2018.
Security update replacement information
This security update replaces previously released security update 4018383.
File hash information
|File name||SHA1 hash||SHA256 hash|
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.