Microsoft has release security updates to address a remote code execution vulnerability as it relates to the following in-support and out-support operating systems. It is recommended that you take the necessary precautions by ensuring your products are always updated.
In-support systems: Windows 7, Windows server 2008 R2, and Windows Server 2008.
Out-Support Systems: Windows 2003 and Windows XP
For more information on the Microsoft Release Security updates you can follow these url:
The Guyana National CIRT recommends users and administration to review these updates and to apply them where necessary.
Microsoft Releases Security Updates to Address Remote Code Execution Vulnerability (US-Cert)