This script is Copyright (C) 2016 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
The collectd Project reports :
Emilien Gaspar has identified a heap overflow in collectd's network
plugin which can be triggered remotely and is potentially exploitable.
See also :
Update the affected package.
Risk factor :
Medium / CVSS Base Score : 6.4