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 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, F1203 V2.0.1.6, AC5 V1.0 V15.03.06.28, FH1203 V2.0.1.6 and AC9 V3.0 V15.03.06.42_multi, and FH1205 V2.0.0.7(775) were discovered to contain a stack overflow via the deviceId parameter in the formSetClientState function.
Tenda AC1206 V15.03.06.23, AC8 V4 V16.03.34.06, AC5 V1.0 V15.03.06.28, AC10 v4.0 V16.03.10.13 and AC9 V3.0 V15.03.06.42_multi were discovered to contain a tack overflow via the list parameter in the formSetQosBand function.
Tenda AC10 V1.0 V15.03.06.23, AC1206 V15.03.06.23, AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, AC5 V1.0 V15.03.06.28, FH1203 V2.0.1.6, AC9 V3.0 V15.03.06.42_multi and FH1205 V2.0.0.7(775) were discovered to contain a stack overflow via the speed_dir parameter in the formSetSpeedWan function.
Tenda AC10 V1.0 V15.03.06.23, AC1206 V15.03.06.23, AC8 v4 V16.03.34.06, AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, AC5 V1.0 V15.03.06.28, AC9 V3.0 V15.03.06.42_multi and AC10 v4.0 V16.03.10.13 were discovered to contain a stack overflow via the list parameter in the formSetVirtualSer function.
Tenda AC7 V1.0,V15.03.06.44, F1203 V2.0.1.6, AC5 V1.0,V15.03.06.28, AC9 V3.0,V15.03.06.42_multi and FH1205 V2.0.0.7(775) were discovered to contain a stack overflow via the deviceId parameter in the addWifiMacFilter function.
There is a buffer overflow vulnerability in the Web server httpd of the router in Tenda router devices such as Tenda AC9 V1.0 V15.03.02.19(6318) and Tenda AC9 V3.0 V15.03.06.42_multi. When setting the virtual service, the httpd program will crash and exit when the super-long list parameter occurs.
A vulnerability was discovered in Tenda AC9 v3.0 V15.03.06.42_multi and Tenda AC9 V1.0 V15.03.05.19(6318)_CN which allows for remote code execution via shell metacharacters in the guestuser field to the __fastcall function with a POST request.