National Cyber Awareness System:
US-CERT is aware of active exploitation of a vulnerability in Windows Server 2003 Operating System Internet Information Services (IIS) 6.0. Exploitation of this vulnerability may allow a remote attacker to take control of an affected system.
On June 15, 2015, Microsoft ended support for Windows Server 2003 Operating System, which includes its Internet Information Services (IIS) 6.0 web server. Computers running Windows Server 2003 Operating System and its associated programs will continue to work even after support ends. However, using unsupported software may increase the risks of viruses and other security threats.