This script is Copyright (C) 2017 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
The irssi project reports :
Use after free while producing list of netjoins (CWE-416). This issue
was found and reported to us by APic. This issue usually leads to
segmentation faults. Targeted code execution should be difficult.
See also :
Update the affected package.
Risk factor :
High / CVSS Base Score : 7.5