A vulnerability has been found in Tenda i22 1.0.0.3(4687) and classified as problematic. Affected by this vulnerability is the function websReadEvent of the file /goform/GetIPTV?fgHPOST/goform/SysToo. The manipulation of the argument Content-Length leads to null pointer dereference. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability classified as critical has been found in Tenda i22 1.0.0.3(4687). This affects the function formSetUrlFilterRule. The manipulation of the argument groupIndex leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The associated identifier of this vulnerability is VDB-262143. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the funcpara1 parameter in the formSetCfm function.

Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the list parameter in the formwrlSSIDset function.

Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the appData parameter in the formSetAppFilterRule function.

Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the index parameter in the formWifiMacFilterSet function.

Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the formWx3AuthorizeSet function.

Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the ping1 parameter in the formSetAutoPing function.

Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the index parameter in the formWifiMacFilterGet function.

Tenda i22 V1.0.0.3(4687) was discovered to contain a buffer overflow via the list parameter in the formwrlSSIDget function.