MS15-025: Description of the security update for Windows kernel: March 10, 2015

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


This security update resolves vulnerabilities in Windows. The most severe of the vulnerabilities could allow elevation of privilege if an attacker logs on to an affected system and runs a specially crafted application. An attacker who successfully exploited the vulnerability could run arbitrary code in the security context of the account of another user who is logged on to the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts that have full user rights.


Microsoft has released security bulletin MS15-025. 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

Known issues with this security update

  • Customers who are running supported editions of Windows Server 2003 are repeatedly reoffered security update 3033395. On March 16, 2015, Microsoft released update 3033395-v2 to address this problem. Customers who have not already installed the 3033395 update should install 3033395-v2 to be fully protected from this vulnerability. To avoid the possibility of future detection logic problems, we recommend that customers who are running Windows Server 2003 and who have already successfully installed update 3033395 also apply update 3033395-v2 even though their systems already have the protection that is provided by security update 3033395.

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.