Tenda AC9 V15.03.06.42multi was found to contain a command injection vulnerability in the formSetSambaConf function via the usbname parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.

Tenda AC9 V15.03.06.42multi was found to contain a command injection vulnerability in the formsetUsbUnload function via the deviceName parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.

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 V15.03.06.42multi were discovered to contain a tack overflow via the list parameter in the formSetQosBand function.

Tenda AC9 V3.0 V15.03.06.42multi was discovered to contain a stack overflow via parameter firewallEn at url /goform/SetFirewallCfg.

Tenda AC9 V3.0 V15.03.06.42multi and Tenda AC5 USAC5V1.0RTLV15.03.06.28 were discovered to contain a stack overflow via parameter startIp and endIp at url /goform/SetPptpServerCfg.

Tenda AC9 V3.0 V15.03.06.42multi and Tenda AC5 USAC5V1.0RTLV15.03.06.28 were discovered to contain a stack overflow via parameter mac at url /goform/GetParentControlInfo.

A vulnerability was discovered in Tenda AC9 v3.0 V15.03.06.42multi 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.

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 V15.03.06.42multi. When setting the virtual service, the httpd program will crash and exit when the super-long list parameter occurs.