Tenda HG7HG9/HG10 Web Management voip_other_set asp_voip_OtherSet stack-based overflow

A vulnerability was found in Tenda HG7HG9 and HG10 300001138_en_xpon. Affected by this issue is the function asp_voip_OtherSet of the file /boaform/voip_other_set of the component Web Management Interface. Performing a manipulation of the argument funckey_transfer results in stack-based buffer overflow. The attack is possible to be carried out remotely.