A vulnerability, which was classified as critical, has been found in Tenda O3 1.0.0.10. This issue affects the function formexeCommand. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-272117 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability classified as critical was found in Tenda O3 1.0.0.10. This vulnerability affects the function formQosSet. The manipulation of the argument remark/ipRange/upSpeed/downSpeed/enable leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-272116. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenda i29V1.0 V1.0.0.5 was discovered to contain a hardcoded password for root.

Tenda AC18 V15.03.3.10_EN was discovered to contain a stack-based buffer overflow vulnerability via the deviceId parameter at ip/goform/addWifiMacFilter.

Tenda AC18 V15.03.3.10_EN was discovered to contain a stack-based buffer overflow vulnerability via the deviceId parameter at ip/goform/saveParentControlInfo.

A vulnerability in /goform/SetVirtualServerCfg in the sub_6320C function in Tenda AX1806 1.0.0.1 firmware leads to stack-based buffer overflow.

A vulnerability in /goform/SetStaticRouteCfg in the sub_519F4 function in Tenda AX1806 1.0.0.1 firmware leads to stack-based buffer overflow.

A vulnerability in /goform/SetNetControlList in the sub_656BC function in Tenda AX1806 1.0.0.1 firmware leads to stack-based buffer overflow.

Vulnerability in Tenda AC8v4 .V16.03.34.09 due to sscanf and the last digit of s8 being overwritten with \x0. After executing set_client_qos, control over the gp register can be obtained.

A vulnerability, which was classified as critical, has been found in Tenda A301 15.13.08.12. Affected by this issue is the function formWifiBasicSet of the file /goform/SetOnlineDevName. The manipulation of the argument devName leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-269948. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.