This indicates an attack attempt to exploit an authentication-bypass vulnerability in D-Link products.
This issue is caused by an error in the DCCD deamon when handling commands from an unauthenticated user. It may allow remote attackers to bypass security restrictions, execute remote commands, or modify the existing device configuration.
D-Link DAP-1160 1.31b01
D-Link DAP-1160 1.30b10
D-Link DAP-1160 1.20b06
Currently we are not aware of any patches supplied by the vendor for this issue.