Multiple Tenda devices are affected by authentication bypass, such as AC15V1.0 Firmware V15.03.05.20_multi?AC5V1.0 Firmware V15.03.06.48_multi and so on. an attacker can obtain sensitive information, and even combine it with authenticated command injection to implement RCE.

Tenda i29 v1.0 V1.0.0.5 was discovered to contain a buffer overflow via the ip parameter in the spdtstConfigAndStart function.

Tenda AC6 US_AC6V1.0BR_V15.03.05.16_multi_TD01.bin is vulnerable to Buffer Overflow via function "sub_73004."

Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter list and bindnum at /goform/SetIpMacBind.

Tenda i29 v1.0 V1.0.0.5 was discovered to contain a buffer overflow via the time parameter in the sysTimeInfoSet function.

Tenda i29 v1.0 V1.0.0.5 was discovered to contain a buffer overflow via the bandwidth parameter in the wifiRadioSetIndoor function.

Tenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function R7WebsSecurityHandler.

Tenda AC7 V1.0 V15.03.06.44, Tenda AC9 V3.0 V15.03.06.42_multi, and Tenda AC5 V1.0RTL_V15.03.06.28 were discovered to contain a stack overflow via parameter page at url /goform/NatStaticSetting.

A security flaw has been discovered in Tenda AC15 up to 15.13.07.13. Affected by this issue is some unknown functionality of the file /goform/TextEditingConversion. The manipulation of the argument wpapsk_crypto2_4g results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

Tenda AC10 V15.03.06.23 contains a Stack overflow vulnerability via /goform/formSetClientState.

Tenda i29 v1.0 V1.0.0.5 was discovered to contain a stack overflow via the ip parameter in the setPing function.

An issue was discovered in goform/formSetIptv in Tenda AC15V1.0 V15.03.05.18_multi. When the condition is met, `s1_1` will be passed into sub_B0488, concatenated into `doSystemCmd`. The value of s1_1 is not validated, potentially leading to a command injection vulnerability.

Tenda TX3 US_TX3V1.0br_V16.03.13.11_multi_TDE01 was discovered to contain a stack overflow via the startIp parameter at /goform/SetPptpServerCfg.

Tenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the schedStartTime parameter in the setSchedWifi function.

Tenda M3 V1.0.0.12(4856) was discovered to contain a Command Execution vulnerability via the function TendaTelnet.

A security vulnerability has been detected in Tenda WH450 1.0.0.18. Affected by this issue is some unknown functionality of the file /goform/L7Im of the component HTTP Request Handler. Such manipulation of the argument page leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.

A flaw has been found in Tenda WH450 1.0.0.18. The affected element is an unknown function of the file /goform/Natlimit of the component HTTP Request Handler. This manipulation of the argument page causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.

Tenda AC18 router v15.03.05.19 and v15.03.05.05 was discovered to contain a stack overflow via the time parameter at /goform/PowerSaveSet.

Tenda AC1206 V15.03.06.23 was discovered to contain a stack overflow via the time parameter at the function setSmartPowerManagement.

Tenda 4G300 v1.01.42 was discovered to contain a stack overflow via the page parameter at /VirtualSer.

Tenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function formGetWeiXinConfig.

Tenda AC8V4.0-V16.03.34.06 was discovered to contain a stack overflow via the timeZone parameter in the sub_44db3c function.

Tenda AC1206 V15.03.06.23 was discovered to contain multiple stack overflows via the deviceMac and the device_id parameters in the function addWifiMacFilter.

A vulnerability was found in Tenda WH450 1.0.0.18. This affects an unknown function of the file /goform/PPTPDClient of the component HTTP Request Handler. Performing a manipulation of the argument Username results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used.

A vulnerability was detected in Tenda WH450 1.0.0.18. Impacted is an unknown function of the file /goform/NatStaticSetting. The manipulation of the argument page results in stack-based buffer overflow. The attack may be performed from remote. The exploit is now public and may be used.

A vulnerability was determined in Tenda WH450 1.0.0.18. This impacts an unknown function of the file /goform/CheckTools of the component HTTP Request Handler. Executing a manipulation of the argument ipaddress can lead to command injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

A vulnerability has been found in Tenda WH450 1.0.0.18. This issue affects some unknown processing of the file /goform/SafeUrlFilter. The manipulation of the argument page leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

A vulnerability has been found in Tenda WH450 1.0.0.18. The impacted element is an unknown function of the file /goform/PPTPClient of the component HTTP Request Handler. Such manipulation of the argument netmsk leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was determined in Tenda W6-S 1.0.0.4(510). This impacts an unknown function of the file /bin/httpd of the component R7websSsecurityHandler. Executing a manipulation of the argument Cookie can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

A vulnerability, which was classified as critical, was found in Tenda AC7 1200M 15.03.06.44. Affected is the function TendaTelnet of the file /goform/telnet. The manipulation of the argument lan_ip leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Tenda AX3 V16.03.12.11 was discovered to contain a stack overflow via the function set_device_name.

Tenda AX9 V22.03.01.46 is vulnerable to command injection.

Tenda W30E V16.01.0.12(4843) was discovered to contain a stack overflow via the function localMsg.

Tenda AX12 V22.03.01.46 was discovered to contain a stack overflow via the list parameter at /goform/SetVirtualServerCfg.

Tenda AX3 V16.03.12.11 was discovered to contain a Command Execution vulnerability via the function /goform/telnet.

Buffer Overflow vulnerability in Tenda AX1803 v.1.0.0.1 allows a remote attacker to execute arbitrary code via the wpapsk_crypto parameter in the function fromSetWirelessRepeat.

Tenda AX12 V22.03.01.46 was discovered to contain a stack overflow via the list parameter at /goform/SetStaticRouteCfg.

A security flaw has been discovered in Tenda WH450 1.0.0.18. This impacts an unknown function of the file /goform/wirelessRestart of the component HTTP Request Handler. The manipulation of the argument GO results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks.

Tenda AC10 US_AC10V4.0si_V16.03.10.13_cn was discovered to contain a stack overflow via the sub_45DC58 function. This vulnerability allows attackers to cause a Denial of Service (DoS) or execute arbitrary code via a crafted payload.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow via /goform/formWifiBasicSet.

A vulnerability has been found in Tenda AC21 16.03.08.16. This vulnerability affects unknown code of the file /goform/SetSysTimeCfg. The manipulation of the argument timeZone/time leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was identified in Tenda O3 1.0.0.10(2478). Affected by this vulnerability is the function SetValue/GetValue of the file /goform/AdvSetLanip. The manipulation of the argument lanIp leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

A security vulnerability has been detected in Tenda CH22 up to 1.0.0.1. This issue affects the function formWrlsafeset of the file /goform/AdvSetWrlsafeset of the component HTTP Request Handler. The manipulation of the argument mit_ssid_index leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setmac allows attackers to execute arbitrary code on the system via a crafted post request.

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /gofrom/setwanType allows attackers to execute arbitrary code on the system via a crafted post request. This occurs when input vector controlled by malicious attack get copied to the stack variable.

A vulnerability was determined in Tenda AC7 15.03.06.44. This affects an unknown function of the file /goform/setNotUpgrade. This manipulation of the argument newVersion causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

A vulnerability was found in Tenda A18 up to 15.13.07.09. It has been rated as critical. This issue affects the function SetCmdlineRun of the file /goform/SetCmdlineRun of the component HTTP POST Request Handler. The manipulation of the argument wpapsk_crypto5g leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setportList allows attackers to execute arbitrary code on the system via a crafted post request.

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setVLAN allows attackers to execute arbitrary code on the system via a crafted post request.

A vulnerability, which was classified as critical, has been found in Tenda G3 15.11.0.20. This issue affects the function formSetDebugCfg of the file /goform/setDebugCfg. The manipulation of the argument enable/level/module leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.