how they can know the vulnerability is limited to software downloaded within a certain timeframe. It isn't. The bug has been in ProFTPd for years, here's the d

how they can know the vulnerability is limited to software downloaded within a certain timeframe. It isn't. The bug has been in ProFTPd for years, here's the details: http://bugs.proftpd.org/show_bug.cgi?id=3521 http://bugs.proftpd.org/show_bug.cgi?id=3521 If anyone is running a ProFTPd version older than 1.3.3c then you should act now. Your host is open to remote code execution.