cisco-sa-20170405-wlc1

A vulnerability in RADIUS Change of Authorization (CoA) request processing in the Cisco Wireless LAN Controller (WLC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition by disconnecting a single connection. The vulnerability is due to lack of proper input validation of the RADIUS CoA packet header. An attacker could exploit this vulnerability by sending a crafted RADIUS CoA packet to a targeted device. A successful exploit could allow the attacker to disconnect a connection through the WLC unexpectedly. There are no workarounds that address this vulnerability.