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:
Important
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The fixes included in this Security Update for Internet Explorer 4018271 are also included in the May 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.
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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 4018271, the May 2017 Security Only Quality Update, and the May 2017 Security Monthly Quality Rollup are deployed. We recommend that you review your update deployment rules to make sure the desired updates are deployed.
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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 May 2017 (or a later month) is already installed. This is because those updates contain all fixes 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.
Deployment information
For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:
How to get and install the update
Method 1: Microsoft Update
This update is available through 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. Note For Windows RT and Windows RT 8.1, this update is available through Microsoft Update only.
Method 2: Microsoft Update Catalog
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
More Information
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
File information
For a list of the files that are provided in this cumulative update, download the file information for cumulative update 4018271.
|
File name |
SHA1 hash |
SHA256 hash |
|---|---|---|
|
Windows8.1-KB4018271-x86.msu |
9471B6EC61AFFFF81FF75591A8CDFF42F088DED2 |
96833D33DE2A617416C3C81DAE8B9A93C73052418E41FBA3182E54850D836F3D |
|
Windows8.1-KB4018271-x64.msu |
73D231B6564968233D4E55D9B6B14077A3041AEF |
C229DF805CE8B6F6A6A9FC2F839498C8665065284349AC5193F3F0C079AE17E3 |
|
IE11-Windows6.1-KB4018271-X64.msu |
7C8D8BEB9999D65C8DB17001C697E82A9A0BB1D1 |
E899AE1A2FBD41D2D5A0B3005BA2E6CB39795F47F64857F5F5C283B41DCA6476 |
|
IE11-Windows6.1-KB4018271-X86.msu |
3EB0C93394FCA87F3DE52AE200A57E1770E741D6 |
63178E14811DEE09174D996FCC7859E25C6C1B43957A8DCB8621F78CF2B69B89 |
