An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `nptr`. When this value is passed into the `getMibPrefix` function and concatenated using `sprintf` without proper size validation, it could lead to a buffer overflow vulnerability.

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `picName`. When this value is used in `sprintf` without validating variable sizes, it could lead to a buffer overflow vulnerability.

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addAuthUser` function and processed by `sscanf` without size validation, it could lead to buffer overflow.

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Failure to validate `pPortMapIndex` may lead to buffer overflows when using `strcpy`.

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Failure to validate the sizes of `gstup` and `gstdwn` before concatenating them into `gstruleQos` may lead to buffer overflow.

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function and are processed by `ret = sscanf(pRule, " %d\t%[^\t]\t%[^\n\r\t]", &dhcpsIndex, dhcpsIP, dhcpsMac);`, the lack of size validation for the rules could lead to buffer overflows in `dhcpsIndex`, `dhcpsIP`, and `dhcpsMac`.

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addWewifiWhiteUser` function and processed by `sscanf` without size validation, it could lead to a buffer overflow vulnerability.

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

Tenda WH450 v1.0.0.18 was discovered to contain a buffer overflow via the function fgets.

A vulnerability was determined in Tenda AC10 16.03.10.13. Affected by this vulnerability is the function formSysRunCmd of the file /goform/SysRunCmd. This manipulation of the argument getui causes buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

A vulnerability was identified in Tenda AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument startIp leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

A weakness has been identified in Tenda CH22 1.0.0.1. Affected is the function fromwebExcptypemanFilter of the file /goform/webExcptypemanFilter. Executing a manipulation of the argument page can lead to buffer overflow. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.

A vulnerability was found in Tenda A15 15.13.07.13. Affected is the function fromSetWirelessRepeat of the file /goform/openNetworkGateway. The manipulation of the argument wpapsk_crypto2_4g results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.

A vulnerability classified as critical was found in Tenda i22 1.0.0.3(4687). This vulnerability affects the function formApPortalAccessCodeAuth of the file /goform/apPortalAccessCodeAuth. The manipulation of the argument accessCode/data/acceInfo leads to buffer overflow. The attack can 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.

A vulnerability, which was classified as critical, was found in Tenda i22 1.0.0.3(4687). Affected is the function formApPortalPhoneAuth of the file /goform/apPortalPhoneAuth. The manipulation of the argument data leads to buffer overflow. It is possible to launch the attack 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.

A vulnerability, which was classified as critical, has been found in Tenda i22 1.0.0.3(4687). This issue affects the function formApPortalOneKeyAuth of the file /goform/apPortalOneKeyAuth. The manipulation of the argument data leads to 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.

Buffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"portMappingIndex "request. This occurs because the "formDelPortMapping" function directly passes the parameter "portMappingIndex" to strcpy without limit.

Buffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"qosIndex "request. This occurs because the "formQOSRuleDel" function directly passes the parameter "qosIndex" to strcpy without limit.

Buffer Overflow in Tenda G1 and G3 routers with firmware version V15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"IPMacBindIndex "request. This occurs because the "formIPMacBindDel" function directly passes the parameter "IPMacBindIndex" to strcpy without limit.

Tenda AC8v4 V16.03.34.06 has a stack overflow vulnerability. Affected by this vulnerability is the function setSchedWifi of the file /goform/openSchedWifi. The manipulation of the argument schedEndTime leads to stack-based buffer overflow.

Buffer Overflow vulnerability in Tenda AC10V4 v.US_AC10V4.0si_V16.03.10.13_cn_TDC01 allows a remote attacker to cause a denial of service via the mac parameter in the GetParentControlInfo function.

Tenda AC6 _US_AC6V1.0BR_V15.03.05.16 was discovered to contain a buffer overflow via the function fgets.

Tenda AC15 V1.0BR_V15.03.05.18_multi_TD01 was discovered to contain a buffer overflow via the function FUN_00010e34().

Buffer Overflow vulnerability in Tenda Ac19 v.1.0, AC18, AC9 v.1.0, AC6 v.2.0 and v.1.0 allows a remote attacker to execute arbitrary code via the formSetCfm function in bin/httpd.

Tenda AC6 v2.0 v15.03.06.50 was discovered to contain a buffer overflow in the function 'fromSetSysTime.

Tenda AC10 V1.0re_V15.03.06.46 is vulnerable to Buffer Overflow in the formSetPPTPUserList handler via the list POST parameter.

A weakness has been identified in Tenda AC23 16.03.07.52. This affects the function sscanf of the file /goform/PowerSaveSet. Executing a manipulation of the argument Time can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

A flaw has been found in Tenda AC23 16.03.07.52. This impacts an unknown function of the file /goform/WifiExtraSet. This manipulation of the argument wpapsk_crypto causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.

Tenda V15V1.0 V15.11.0.14(1521_3190_1058) was discovered to contain a buffer overflow vulnerability via the DNSDomainName parameter in the formModifyDnsForward function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Tenda V15V1.0 V15.11.0.14(1521_3190_1058) was discovered to contain a buffer overflow vulnerability via the wifiFilterListRemark parameter in the modifyWifiFilterRules function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

A Buffer overflow vulnerability in function fromAdvSetMacMtuWan of bin httpd in Tenda AC10V4.0 V16.03.10.20 allows remote attackers to cause denial of service and possibly code execution by sending a post request with a crafted payload (field `serviceName`) to /goform/AdvSetMacMtuWan.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow via /goform/FUN_0007343c.

A vulnerability has been found in Tenda AC7 15.03.06.44 and classified as critical. This vulnerability affects the function fromadvsetlanip of the file /goform/AdvSetLanip. The manipulation of the argument lanMask leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in Tenda AC7 15.03.06.44 and classified as critical. This issue affects the function formSetPPTPUserList of the file /goform/setPptpUserList. The manipulation of the argument list leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Tenda AX3 V16.03.12.10_CN is vulnerable to Buffer Overflow in the saveParentControlInfo function via the deviceName parameter.

A vulnerability, which was classified as critical, was found in Tenda AC10 up to 15.03.06.47. This affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg of the component HTTP Handler. The manipulation of the argument startIp/endIp leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Tenda O3V2 1.0.0.12(3880) is vulnerable to Buffer Overflow in the fromSafeSetMacFilter function via the mac parameter.

Tenda AX3 V16.03.12.10_CN is vulnerable to Buffer Overflow in the fromSetSysTime function via the ntpServer parameter.

Tenda AX3 V16.03.12.10_CN is vulnerable to Buffer Overflow in the fromAdvSetMacMtuWan function via the serverName parameter.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow via function fromSetRouteStatic.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow via function R7WebsSecurityHandler.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow via function formSetMacFilterCfg.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow via function formSetWifiGuestBasic.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow via function addWifiMacFilter.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow via function form_fast_setting_wifi_set.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow via function formWifiWpsStart.

Tenda AC18 V15.03.05.19 is vulnerable to Buffer Overflow. via function formWifiWpsOOB.

A vulnerability was found in Tenda AC1206 up to 15.03.06.23. It has been declared as critical. This vulnerability affects the function formSetCfm of the file /goform/setcfm. The manipulation leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

A vulnerability was found in Tenda AC1206 up to 15.03.06.23. It has been rated as critical. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. The manipulation leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

A buffer overflow vulnerability has been discovered in Tenda Ac15 V15.13.07.13. The vulnerability occurs when the webCgiGetUploadFile function calls the socketRead function to process HTTP request messages, resulting in the overwriting of a buffer on the stack.