Tenda Routers Buffer Overflow (CVE-2021-31755; CVE-2021-31756; CVE-2021-31757; CVE-2021-31758)

A buffer overflow vulnerability exists in Tenda routers. Successful exploitation of this vulnerability could result in a denial of service or execution of arbitrary code into the affected system...

CVE-2021-31756

CVE-2021-31756 affects Tenda AC11 devices running firmware up to 02.03.01.104_CN. A stack buffer overflow in the /gofrom/setwanType handler allows an attacker to execute arbitrary code via a crafted POST request, caused by copying a controlled input vector onto a stack variable. Public sources in...