The remote host is using Opera - an alternative web browser. This version contains a flaw that may allow a malicious user to trick a user into running arbitrary code. The issue is triggered when an malicious web site provides a file for download, but crafts the filename in such a way that the file is executed, rather than saved. It is possible that the flaw may allow arbitrary code execution resulting in a loss of confidentiality, integrity, and/or availability. Solution : Install Opera 7.50 or newer.