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mskbMicrosoftKB4490500
HistoryMar 12, 2019 - 12:00 a.m.

Description of the security update for the elevation of privilege vulnerabilities in Windows Embedded POSReady 2009: March 12, 2019

2019-03-1200:00:00
Microsoft
support.microsoft.com
251

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.2 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

41.0%

Description of the security update for the elevation of privilege vulnerabilities in Windows Embedded POSReady 2009: March 12, 2019

Summary

An elevation of privilege vulnerability exists when Windows incorrectly handles calls to Win32k.sys, or when the Win32k component fails to properly handle objects in memory.To learn more about the vulnerabilities, go to 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.

Windows XP file information

File information

File hash information

File name SHA1 hash SHA256 hash
WindowsXP-KB4490500-x86-Embedded-ENU.exe CF8CE2E609B0BA3649E6DEF41602329A7AB2A6FC 02802E457B14E42D59B637A77BDD22FD718DF610FB1DB21A96EE434378140AA0

For all supported x86-based versions

File name File version File size Date Time Platform
Win32k.sys 5.1.2600.7668 1,914,624 08-Mar-2019 02:16 x86

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.2 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

41.0%