An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V15.03.06.42_multi, AC15 V1.0 V15.03.05.19_multi_TD01, and AC18 V15.03.05.19(6318_)_CN devices. There is a buffer overflow vulnerability in the router's web server -- httpd. While processing the /goform/setcfm funcpara1 parameter for a POST request, a value is directly used in a sprintf to a local variable placed on the stack, which overwrites the return address of a function. An attacker can construct a payload to carry out arbitrary code execution attacks.

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.

An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V15.03.06.42_multi, AC15 V1.0 V15.03.05.19_multi_TD01, and AC18 V15.03.05.19(6318_)_CN devices. There is a buffer overflow vulnerability in the router's web server -- httpd. While processing the /goform/saveParentControlInfo deviceId and time parameters for a POST request, a value is directly used in a strcpy to a local variable placed on the stack, which overwrites the return address of a function. An attacker can construct a payload to carry out arbitrary code execution attacks.

Tenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the devName parameter in the formSetDeviceName function.

Tenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the limitSpeedUp parameter in the formSetClientState function.

Tenda AC18 V15.03.05.19 was discovered to contain a stack overflow via the startIP parameter in the formSetPPTPServer function.

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formSetPortMapping. This vulnerability allows attackers to cause a Denial of Service (DoS) via the portMappingServer, portMappingProtocol, portMappingWan, porMappingtInternal, and portMappingExternal parameters.

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formAddDnsForward. This vulnerability allows attackers to cause a Denial of Service (DoS) via the DnsForwardRule parameter.

Tenda AX12 v22.03.01.21 was discovered to contain a stack buffer overflow in the function sub_422CE4. This vulnerability allows attackers to cause a Denial of Service (DoS) via the strcpy parameter.

Stack-based Buffer Overflow vulnerability in Shenzhen Tenda Technology Co Tenda AC6V2 (setDoubleL2tpConfig->guest_ip_check(overflow arg: mask) modules) allows Overflow Buffers.This issue affects Tenda AC6V2: through 15.03.06.50

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formSetPortMapping. This vulnerability allows attackers to cause a Denial of Service (DoS) via the portMappingServer, portMappingProtocol, portMappingWan, porMappingtInternal, and portMappingExternal parameters.

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formSetQvlanList. This vulnerability allows attackers to cause a Denial of Service (DoS) via the qvlanName parameter.

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formSetStaticRoute. This vulnerability allows attackers to cause a Denial of Service (DoS) via the staticRouteNet, staticRouteMask, and staticRouteGateway parameters.

Stack-based Buffer Overflow vulnerability in Shenzhen Tenda Technology Co Tenda AC6V2 (setDoublePppoeConfig->guest_ip_check(overflow arg: mask) modules) allows Overflow Buffers.This issue affects Tenda AC6V2: through 15.03.06.50

Stack-based Buffer Overflow vulnerability in Shenzhen Tenda Technology Co Tenda AC6V2 (fromAdvSetLanip(overflow arg:lanMask) modules) allows Overflow Buffers.This issue affects Tenda AC6V2: through 15.03.06.50

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formDelDhcpRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the delDhcpIndex parameter.

A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in page /goform/setIPv6Status via the prefixDelegate parameter, which causes a Denial of Service.

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formIPMacBindModify. This vulnerability allows attackers to cause a Denial of Service (DoS) via the IPMacBindRuleIP and IPMacBindRuleMac parameters.

Tenda O6 V3.0 firmware V1.0.0.7(2054) contains a stack overflow vulnerability in the formexeCommand function.

Tenda FH451 v1.0.0.9 has a stack overflow vulnerability located in the RouteStatic function.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the iptv.city.vlan parameter in the function formGetIptv.

A vulnerability classified as critical was found in Tenda i21 1.0.0.14(4656). This vulnerability affects the function formGetDiagnoseInfo. The manipulation of the argument cmdinput 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-263080. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the adv.iptv.stballvlans parameter in the function setIptvInfo.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the iptv.stb.port parameter in the function setIptvInfo.

A vulnerability was found in Tenda W15E 15.11.0.14. It has been classified as critical. Affected is the function guestWifiRuleRefresh. The manipulation of the argument qosGuestDownstream leads to stack-based buffer overflow. It is possible to launch the attack remotely. VDB-261870 is the identifier assigned to this vulnerability. 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 W15E 15.11.0.14. Affected is the function formAddDnsForward of the file /goform/AddDnsForward. The manipulation of the argument DnsForwardRule 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. VDB-261858 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a Denial of Service.

A vulnerability was found in Tenda i21 1.0.0.14(4656). It has been classified as critical. This affects the function formWifiMacFilterSet. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-263085 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenda FH1206 V1.2.0.8(8155)_EN contains a Buffer Overflow vulnerability via the functino formWrlExtraGet.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the iptv.city.vlan parameter in the function setIptvInfo.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the iptv.stb.mode parameter in the function formGetIptv.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the adv.iptv.stbpvid parameter in the function setIptvInfo.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the serverName parameter in the function form_fast_setting_internet_set.

A vulnerability was found in Tenda i21 1.0.0.14(4656) and classified as critical. Affected by this issue is the function formWifiMacFilterGet. The manipulation of the argument index 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-263084. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenda Router W30E V1.0.1.25(633) is vulnerable to Buffer Overflow in function fromRouteStatic via parameters entrys and mitInterface.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the iptv.stb.port parameter in the function formGetIptv.

Tenda AX1806 V1.0.0.1 contains a stack overflow vulnerability in function sub_455D4, called by function fromSetWirelessRepeat.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the adv.iptv.stballvlans parameter in the function formGetIptv.

A vulnerability was found in Tenda i21 1.0.0.14(4656). It has been declared as critical. This vulnerability affects the function formexeCommand. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-263086 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenda FH1206 V1.2.0.8(8155)_EN contains a Buffer Overflow vulnerability via the function formWrlsafeset.

Tenda AX1806 v1.0.0.1 contains a stack overflow via the adv.iptv.stbpvid parameter in the function formGetIptv.

A vulnerability, which was classified as critical, was found in Tenda i21 1.0.0.14(4656). Affected is the function formSetAutoPing. The manipulation of the argument ping1/ping2 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. VDB-263082 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formAddVpnUsers. This vulnerability allows attackers to cause a Denial of Service (DoS) via the vpnUsers parameter.

A vulnerability has been found in Tenda i21 1.0.0.14(4656) and classified as critical. Affected by this vulnerability is the function formSetUplinkInfo of the file /goform/setUplinkInfo. The manipulation of the argument pingHostIp2 leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-263083. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenda FH1206 v02.03.01.35 was discovered to contain a stack overflow via the page parameter in the fromSafeUrlFilter function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Tenda FH1201 v1.2.0.14 (408) was discovered to contain a stack overflow via the Go parameter in the fromSafeClientFilter function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Tenda FH1206 v02.03.01.35 was discovered to contain a stack overflow via the delno parameter in the fromPptpUserSetting function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

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 list at url /goform/SetIpMacBind.

Tenda AC6 v15.03.05.09_multi was discovered to contain a stack overflow via the schedendtime parameter in the openSchedWifi function.

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function guestWifiRuleRefresh. This vulnerability allows attackers to cause a Denial of Service (DoS) via the qosGuestUpstream and qosGuestDownstream parameters.