The software defined wide-area network is technology based on SDN approach applied to branch office connections in Enterprises. According to Gartner's predictions, more than 50% of routers will be replaced with SD-WAN Solutions by 2020. The SD-WAN can have firewalls and other perimeter security features on board which makes them attractive targets for attackers. Vendors promise "on-the-fly agility, security" and many other benefits. But what does "security" really mean from a hand-on perspective? Most of SD-WAN solutions are distributed as Linux-based Virtual Appliances or a Cloud-centric service which can make them low-hanging fruit even for script kiddie. Complexity of SDN creates additional security issues and cybersecurity pro should address it before an attack occurs. This presentation will introduce practical analysis of different SD-WAN solutions from the attacker perspective. Attack surface, threat model and real-world vulnerabilities in SD-WAN solutions will be presented.