CVE-2026-7054: Tenda F456 httpd PPTPDClient fromPptpUserAdd buffer overflow

A weakness has been identified in Tenda F456 1.0.0.5. This vulnerability affects the function fromPptpUserAdd of the file /goform/PPTPDClient of the component httpd. Executing a manipulation of the argument opttype/usernamewith can lead to buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.