A vulnerability classified as critical has been found in D-Link DIR-890L and DIR-806A1 up to 100CNb11/108B03. Affected is the function sub175C8 of the file /htdocs/soap.cgi. The manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

D-LINK DIR-806 1200M11AC wireless router DIR806A1FW100CNb11 is vulnerable to command injection.

D-LINK DIR-806 1200M11AC wireless router DIR806A1FW100CNb11 is vulnerable to command injection due to lax filtering of REMOTEPORT parameters.

D-LINK DIR-806 1200M11AC wireless router DIR806A1FW100CNb11 is vulnerable to command injection due to lax filtering of HTTPST parameters.

An issue was discovered in D-Link DIR-806 devices. There is a stack-based buffer overflow in function hnapmain at /htdocs/cgibin. The function will call sprintf without checking the length of strings in parameters given by HTTP header and can be controlled by users. And it finally leads to a stack-based buffer overflow via a special HTTP header.

An issue was discovered in D-Link DIR-806 devices. There is a command injection in function hnapmain, which calls system() without checking the parameter that can be controlled by user, and finally allows remote attackers to execute arbitrary shell commands with a special HTTP header.