A vulnerability was found in Tenda i21 1.0.0.14(4656). It has been rated as critical. Affected by this issue is the function
fromDhcpSetSer
of the file /goform/DhcpSetSe. The manipulation of the argument dhcpStartIp/dhcpEndIp/dhcpGw/dhcpMask/dhcpLeaseTime/dhcpDns1/dhcpDns2 leads to stack-based buffer overflow.
This vulnerability is handled as CVE-2024-4251. The attack may be launched remotely. Furthermore, there is an exploit available.
The vendor was contacted early about this disclosure but did not respond in any way.