Security scan flags filezilla server 1.7.2

[cxc143]

I have filezilla server 1.7.2 x64 windows installed, and a nessus scan flagged it as having a security bypass vulnerability due to accepting unencrypted commands if SSL negotiations fail. I've come up empty on the searches I've done. Is there a workaround for this, so it doesn't show up on a scan?

[botg]

You can change the listeners to require explicit FTP over TLS in the settings dialog.