Deerfield WebSite Professional contains a flaw that may allow a remote attacker to cause a denial of service. The issue is triggered when multiple non-authenticated requests to the /dyn/ directory are made, and will result in loss of availability for the remote manager service.
Currently, there are no known upgrades or patches to correct this issue. It is possible to correct the flaw by implementing the following workaround: Block access to the remote manager service from untrusted networks. The service is listening on port 9999/tcp by default.