Microsoft Security Advisory (975191)
Microsoft is investigating new public reports of a vulnerability in the FTP Service in Microsoft Internet Information Services (IIS) 5.0, Microsoft Internet Information Services (IIS) 5.1, and Microsoft Internet Information Services (IIS) 6.0. The vulnerability could allow remote code execution on affected systems that are running the FTP service and are connected to the Internet.
This vulnerability was not responsibly disclosed to Microsoft and may put computer users at risk. Microsoft is aware that detailed exploit code has been published on the Internet for this vulnerability. Microsoft is not currently aware of active attacks that use this exploit code or of customer impact at this time. However, Microsoft is actively monitoring this situation to keep customers informed and to provide customer guidance as necessary.
Upon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This may include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs.
Original Source:
http://www.microsoft.com/technet/security/advisory/975191.mspx