Tenda AC8V4 vulnerabilities

A heap overflow vulnerability was discovered in Tenda AC8V4 firmware version V16.03.34.06 in the /goform/GetParentControlInfo function. Manipulation of the mac argument leads to a heap-based buffer overflow.

A stack overflow vulnerability was discovered in Tenda AC8V4 firmware version V16.03.34.06 in the /goform/WifiGuestSet function. Manipulation of the shareSpeed argument leads to a stack-based buffer overflow.

A stack buffer overflow vulnerability was discovered in the Tenda AC8V4 router with firmware version V16.03.34.06 in the /goform/saveParentControlInfo function. Manipulation of the time argument leads to a stack-based buffer overflow.

A stack overflow vulnerability was discovered in the Tenda AC8V4 router version V16.03.34.06 in the /goform/SetSysTimeCfg function. Manipulation of the timeZone and timeType arguments can lead to a stack-based buffer overflow.

A vulnerability in Tenda AC8v4 firmware version V16.03.34.09 is caused by improper use of the sscanf function, which overwrites the last digit of the s8 variable with a null byte. After executing the set_client_qos command, control over the gp register can be obtained.

A stack overflow vulnerability was discovered in Tenda AC8V4 firmware version V16.03.34.06 in the /goform/fast_setting_wifi_set function. Manipulation of the timeZone argument leads to a stack-based buffer overflow.

A stack overflow vulnerability was discovered in the Tenda AC8V4 router firmware version V16.03.34.06. The issue occurs in the sscanf function when processing the time parameter.

A stack overflow vulnerability was discovered in the Tenda AC8V4 router firmware version V16.03.34.06 in the set_qosMib_list function via the list parameter. An attacker can remotely crash the device or potentially execute arbitrary code.

A stack overflow vulnerability was discovered in Tenda AC8V4 firmware version V16.03.34.06. The issue occurs in the save_virtualser_data function via the list parameter.