Fortinet FortiOS is a set of security operating system dedicated to FortiGate network security platform from American Fita (Fortinet). The system provides users with firewall, antivirus, IPSec/SSLVPN, Web content filtering and anti-spam and other security features. An Access Control Error vulnerability exists in Fortinet FortiOS that stems from the presence of improper access control. An attacker could exploit the vulnerability to access restricted resources from an untrusted host.