MS15-023: Vulnerabilities in Kernel-mode driver could allow elevation of privilege: March 10, 2015

Applies to: Windows Server 2012 R2 DatacenterWindows Server 2012 R2 StandardWindows Server 2012 R2 Essentials


This security update resolves four privately reported vulnerabilities in Microsoft Windows. The most severe of these vulnerabilities could allow elevation of privilege if an attacker logs on to the system and runs a specially crafted application that is designed to increase privileges. An attacker could then do the following:
  • Install programs
  • View, change, or delete data
  • Create new accounts that have full administrative rights


Microsoft has released security bulletin MS15-023. To learn more about this security bulletin:

How to obtain help and support for this security update

Help installing updates:
Support for Microsoft Update

Security solutions for IT professionals:
TechNet Security Troubleshooting and Support

Help protect your Windows-based computer from viruses and malware:
Virus Solution and Security Center

Local support according to your country:
International Support

More Information

Nonsecurity-related fixes that are included in this security update

This security update contains the following non-security fixes for Windows 8.1 and Windows Server 2012 R2:
  • A pointer display issue when you work across monitors that have different resolutions.
  • An issue when you move layered windows across monitors that have different resolutions.
  • An auto-rotation issue when you use a 2-in-1 system in both portrait and landscape mode, and then you switch between those modes during hibernation.
  • A re-drawing issue with windows on remote desktops.
This security update also resolves a known issue in which you may notice some decrease in text quality in certain scenarios after you install security update 3013455. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
3013455 MS15-010: Vulnerability in Windows kernel could allow elevation of privilege: February 10, 2015

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 times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.