Cumulative security update for Internet Explorer: October 10, 2017
Summary
This security update resolves several reported vulnerabilities in Internet Explorer. The most severe of these vulnerabilities could allow remote code execution if a user views a specially crafted webpage in Internet Explorer. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures.
Additionally, see the following articles for more information about this cumulative update:
- Windows 7 SP1 and Windows Server 2008 R2 SP1 update history
- Windows Server 2012 update history
- Windows 8.1 and Windows Server 2012 R2 update history
- Windows 10 and Windows Server 2016 update history
Important
- The fixes that are included in this Security Update for Internet Explorer 4040685 are also included in the October 2017 Security Monthly Quality Rollup. Installing either the Security Update for Internet Explorer or the Security Monthly Quality Rollup installs the fixes that are resolved in this update.
- If you use update management processes other than Windows Update and you automatically approve all security updates classifications for deployment, this Security Update for Internet Explorer 4040685, the October 2017 Security Only Quality Update, and the October 2017 Security Monthly Quality Rollup are deployed. We recommend that you review your update deployment rules to make sure that the desired updates are deployed.
- This Security Update for Internet Explorer is not applicable for installation on a computer where the Security Monthly Quality Rollup or the Preview of Monthly Quality Rollup from October 2017 (or a later month) is already installed. This is because those updates contain all fixes that are in this Security Update for Internet Explorer.
If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
Known issues in this update
| Symptom | Workaround |
| After installing KB4040685, Internet Explorer 11 package users may receive an error message that states that an application exception has occurred when some applications are closed. This can affect applications that use mshtml.dll to load web content. This problem occurs only when a process is already shutting down. It does not affect application functionality. | Microsoft is working on a resolution and will provide an update in an upcoming release. |
Deployment information
For deployment details for this security update, see the following article in the Microsoft Knowledge Base:
How to get and install the update
Method 1: Microsoft Update
Method 2: Microsoft Update Catalog
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.File information
For a list of the files that are provided in this cumulative update, download the file information for cumulative update 4040685.
Properties
Article ID: 4040685 - Last Review: Oct 11, 2017 - Revision: 18
Internet Explorer 11, Internet Explorer 10, Windows Internet Explorer 9