This script is Copyright (C) 2009-2013 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
From the Samba 3.0.2 release notes :
Security Announcement: It has been confirmed that previous versions of
Samba 3.0 are susceptible to a password initialization bug that could
grant an attacker unauthorized access to a user account created by the
mksmbpasswd.sh shell script.
See also :
Update the affected package.
Risk factor :
High / CVSS Base Score : 7.5