The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://www.cacti.net/release_notes_0_8_7h.php http://www.vuxml.org/freebsd/f08e2c15-ffc9-11e0-b0f3-bcaec565249c.html

The following package is affected: cacti