CISCO systems has released security updates for a number of vulnerabilities affecting Wireless LAN controller, Identity Services Engineer Software and Aironet 1800 Series Access Points.
These vulnerability may allow attackers to take control of the affected devices.
Click here for more information about Wireless LAN controller unauthorized-access vulnerabilities
Click here for Aironet 1800 SERIES Access Point vulnerability
Click here for Aironet 1800 Series Access Point default vulnerability