[Zope] Security flaw in Zope FTP server?

[jiva@devware.com]

I was running a security scanner (nessus) on my webserver tonight, and it came
back with port 8021 having an ftp server which "closes the connection
when USER, PASS, or HELP is given with a too long argument."  It says
"This is probably due to a buffer overflow"  Is this a false positive?
Or is this something to actually be concerned about?
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