The vulnerability affects the implementation of the Control Point Access Point Wireless Provisioning Protocol (CAPWAP) on Cisco IOS XE operating systems, as well as Control Points and Cisco Catalyst 9800 and 9800-CL for Cloud wireless network controllers. This allows a malicious actor to cause service interruptions.

The vulnerability of the CAPWAP protocol implementation in Cisco IOS XE operating systems, as well as in Catalyst access points and Cisco Catalyst 9800 and 9800-CL for Cloud wireless network controllers, is related to an unvalidated return value that causes the zero pointer to be swapped...