A vulnerability, which was classified as critical, has been found in Tenda i21 1.0.0.14(4656). Affected by this issue is the function formQosManageDouble_user. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. The attack may be launched remotely. The identifier of this vulnerability is VDB-262136. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
https://vuldb.com/?submit.319830
https://vuldb.com/?ctiid.262136
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formQosManageDouble_auto.md