This script is Copyright (C) 2012-2013 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
Dave B reports on Full Disclosure :
It seems that mutt fails to check the validity of a SMTP servers
certificate during a TLS connection. [...] This means that an attacker
could potentially MITM a mutt user connecting to their SMTP server
even when the user has forced a TLS connection.
See also :
Update the affected package.
Risk factor :
Medium / CVSS Base Score : 5.8