Tenda 4G300 sub_4260F0 stack-based overflow

A vulnerability was found in Tenda 4G300 1.01.42. It has been classified as critical. This affects the function sub_4260F0. The manipulation of the argument upfilen leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The associated identifier of this vulnerability is VDB-261987. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.