The Internet Access Point Protocol (IAPP) module on Cisco Wireless LAN Controller (WLC) devices with software 8.1(104.37) allows remote attackers to trigger incorrect traffic forwarding via crafted IPv6 packets, aka Bug ID CSCuv40033.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.