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 

  • The fixes that are included in this Security Update for Internet Explorer 4074736 are also included in the February 2018 Security Monthly Quality Rollup. Installing either the Security Update for Internet Explorer or the Security Monthly Quality Rollup installs the fixes that are 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 4074736, the February  2018 Security Only Quality Update, and the February 2018 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 February 2018 (or a later month) is already installed. This is because those updates contain all the 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.

Deployment information

For deployment details for this security update, see the following article in the Microsoft Knowledge Base:

Security update deployment information: February 13, 2018

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 KB 4074736.

File hash information

File name

SHA1 hash

SHA256 hash

Windows8.1-KB4074736-x64.msu

2164B5EB612D7EB831344E88F399DD34631E98F1

7B65BB533C4D2C5A36F3B6798FD216CDA5B3B0E084DA47A42347638FE6244929

Windows8.1-KB4074736-x86.msu

771304D2ABC9DBF7E87758B3CD0E927F0ED0DD16

CA4B7B5EA51ED9B424F35E62B1E80549422D740D636302CDD8E5BC1B9522A1FA

Windows8-RT-KB4074736-x64.msu

4F9BAE31D82681E3463E4A8AA7973B6978CDDEE7

4DFD257F4971334480113171A77F63F4786DF7A2E59C7059FC85767220F7CB9A

IE11-Windows6.1-KB4074736-X86.msu

D7C48E9AD02049A2F589E652838DD0DB7F8D15EF

61DEF35149C08A27250F2D69952583F5812E5C3DF35B36D9A15336D1E1E9B539

IE11-Windows6.1-KB4074736-X64.msu

0E12458B30DC68C269FDEF445FDD68F7882CB96D

C5E39D5EC7C3CE61AB6E5E9FE8F2464E1F528E0937E2F84EA34B9FAEF993302D

IE9-Windows6.0-KB4074736-x86.msu

76892A1C46F75DA83F45C6DBF2F2F34D7305278E

98D82C143D4CE82D2D361E0EF3920FD6BBA878A1B74A51E0FB55430C17B04AD1

IE9-Windows6.0-KB4074736-x64.msu

B6B318E20ECDD3827E2969D93FFF3EE6EB3947F1

2EBAEF56C5454F9EF6B1C01FF5EE4397F2903013C7CF88722B57859F39906BCE

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