A vulnerability, which was classified as critical, has been found in Tenda AC8, AC10 and AC18 16.03.10.20. Affected by this issue is some unknown functionality of the file /goform/telnet of the component HTTP Request Handler. The manipulation leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Tenda AC10 V4.0siV16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via cloneType2.

Tenda AC10 V4.0siV16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via serviceName2.

Tenda AC10 V4.0siV16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via serverName2.

Tenda AC10 V4.0siV16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via mac2.

Tenda AC10 V4.0siV16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via wanSpeed2.

Tenda AC10 V4.0siV16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via wanMTU2.

Tenda AC10 v4.0 V16.03.10.13 and V16.03.10.20 firmware has a stack overflow vulnerability via the adslPwd parameter in the formWanParameterSetting function.

A vulnerability, which was classified as critical, has been found in Tenda AC10 16.03.10.13/16.03.10.20. Affected by this issue is the function fromSetSysTime of the file /goform/SetSysTimeCfg. The manipulation of the argument timeZone 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-257780. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.