Summary

This security update addresses the following vulnerabilities:

  • An elevation of privilege vulnerability exists when Windows incorrectly¬†handles calls to Win32k.sys.

  • An elevation of privilege vulnerability exists in Windows when the Win32k component incorrectly handles objects in memory.

  • An information disclosure vulnerability exists when the win32k component incorrectly provides kernel information.

To learn more about the vulnerabilities, see the following Common Vulnerabilities and Exposures (CVE):

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Important

  • 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.

Information about protection and security


File information
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 the times for these files are listed in Coordinated Universal Time (UTC). The dates and the 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 the times may change when you perform certain operations on the files.

 

File information

File hash information

File name

SHA1 hash

SHA256 hash

WindowsXP-KB4486924-x86-Embedded-ENU.exe

49EA7629701A23DD3DBF3C21E60AF54EEC3BAF19

23677D5974C02FF9151A5011DC112710BDD9805134704F64DD62FFDE99A8E954

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Win32k.sys

5.1.2600.7649

1,914,496

08-Jan-2019

17:46

x86

Updspapi.dll

6.3.13.0

382,840

01-Feb-2018

21:28

x86

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