CVE-2026-2873 | Tenda A21 1.0.0.0 /goform/openSchedWifi setSchedWifi schedStartTime/schedEndTime stack-based overflow

A vulnerability was found in Tenda A21 1.0.0.0. It has been rated as critical. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow.

This vulnerability is cataloged as CVE-2026-2873. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.