ofproto_port_get_cfm_status(const struct ofproto *ofproto, ofp_port_t ofp_port,
                            struct cfm_status *status)
{
    struct ofport *ofport = ofproto_get_port(ofproto, ofp_port);
    return (ofport && ofproto->ofproto_class->get_cfm_status
            ? ofproto->ofproto_class->get_cfm_status(ofport, status)
            : EOPNOTSUPP);
}

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.