An issue was discovered in Tenda AC6 USAC6V1.0BRV15.03.05.16multiTD01 allowing attackers to cause a denial of service via the funcname, funcpara1, funcpara2 parameters to the formSetCfm function (uri path: SetCfm).

Tenda AC6 router firmware 15.03.05.19 contains a command injection vulnerability in the formSetIptv function, which processes requests to the /goform/SetIPTVCfg web interface. When handling the list and vlanId parameters, the subADBC0 helper function concatenates these user-supplied values into nvram set system commands using doSystemCmd, without validating or sanitizing special characters (e.g., ;, ", #). An unauthenticated or authenticated attacker can exploit this by submitting a crafted POST request, leading to arbitrary system command execution on the affected device.

Tenda AC6 V2.0 15.03.06.50 was discovered to contain a stack overflow in the page parameter in the DhcpListClient function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Tenda AC6 V2.0 15.03.06.50 was discovered to contain a buffer overflow in the speeddir parameter in the SetSpeedWan function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Multiple buffer overflow vulnerabilities in the openSchedWifi function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the schedStartTime and schedEndTime parameters.

Multiple buffer overflows in the SetClientState function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the limitSpeed, deviceId, and limitSpeedUp parameters.

Tenda AC6 V2.0 15.03.06.50 was discovered to contain a stack overflow in the ssid parameter in the fastsettingwifiset function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Tenda AC6 V2.0 15.03.06.50 was discovered to contain a stack overflow in the page parameter in the addressNat function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Multiple buffer overflows in the AdvSetMacMtuWan function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the wanMTU, wanSpeed, cloneType, mac, serviceName, serverName, wanMTU2, wanSpeed2, cloneType2, mac2, serviceName2, and serverName2 parameters.

A vulnerability was determined in Tenda AC6 15.03.05.16. Affected is the function fromWizardHandle of the file /goform/WizardHandle of the component POST Request Handler. Executing a manipulation of the argument WANT/WANS can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.

A vulnerability was identified in Tenda AC6 15.03.05.16. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. The manipulation of the argument PPPOEPassword leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.

A vulnerability has been found in Tenda AC6 15.03.06.50. This issue affects some unknown processing of the file /goform/WifiGuestSet of the component HTTP Request Handler. Such manipulation of the argument shareSpeed leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Tenda AC6 15.03.05.16multi is vulnerable to Buffer Overflow in the formSetCfm function via the funcname, funcpara1, and funcpara2 parameters.

A vulnerability has been found in Tenda AC6 2.0/15.03.06.23. The affected element is an unknown function of the file /goform/telnet of the component httpd. The manipulation of the argument lan.ip leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

A weakness has been identified in Tenda AC6 15.03.06.23. Affected by this vulnerability is the function formWifiApScan of the file /goform/WifiApScan of the component httpd. Executing a manipulation of the argument wl2g.public.country/wl5g.public.country can lead to os command injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.

A security vulnerability has been detected in Tenda AC6 15.03.06.23. Affected by this issue is the function getlogfile of the file /goform/getLogFile of the component httpd. The manipulation of the argument wans.flag leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used.

Buffer Overflow vulnerability in Tenda AC6 v.15.03.05.16 allows a remote attacker to cause a denial of service via the oversized schedStartTime and schedEndTime parameters in an unauthenticated HTTP GET request to the /goform/openSchedWifi endpoint

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

A vulnerability has been found in Tenda AC6 15.03.06.50 and classified as critical. Affected by this vulnerability is the function setparentcontrolinfo of the component httpd. The manipulation leads to buffer overflow. The attack can be launched remotely.

A vulnerability was found in Tenda AC6 V15.03.05.16. The vulnerability affects the functionality of the /goform/fastsettingwifiset file formfastsettingwifiset. Using the timeZone parameter causes a stack-based buffer overflow.

Tenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the fromAddressNat function.

Tenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the formSetSpeedWan function.

Tenda AC6 v15.03.05.16 was discovered to contain a buffer overflow via the formWifiWpsOOB function.

Tenda AC6 15.03.05.16multi is vulnerable to Buffer Overflow in the sub452A4 function.

There is a RCE vulnerability in Tenda AC6 15.03.05.16multi. In the formexeCommand function, the parameter cmdinput will cause remote command execution.

Tenda AC6 V15.03.05.16 firmware has a buffer overflow vulnerability in the formexeCommand function.

Tenda AC1200 USAC6V2.0RTLV15.03.06.51multiTDE01 was discovered to contain a buffer overflow in the 0x47ce00 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Tenda AC6 15.03.05.16multi is vulnerable to Buffer Overflow in the addWifiMacFilter function via the parameter deviceId.

An issue was discovered in /goform/WifiWpsStart in Tenda AC6V2.0 V15.03.06.23multi. The index and mode are controllable. If the conditions are met to sprintf, they will be spliced into tmp. It is worth noting that there is no size check,which leads to a stack overflow vulnerability.

Tenda AC6 v15.03.05.19 is vulnerable to Buffer Overflow as the Index parameter does not verify the length.