SonicWall Firewall/VPN appliances with a firmware revision of 6.5.0.4 or below are vulnerable to denial of service attacks, arp flooding, and network mapping.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/32800/sonicwall.txt
Source: https://packetstormsecurity.com/files/32800/sonicwall.txt.html