A vulnerability identified as critical has been detected in Tenda F1202 1.2.0.20(408) . Affected by this vulnerability is the function formWrlExtraSet of the file /goform/WrlExtraSet . Performing a manipulation of the argument delno results in stack-based buffer overflow. This vulnerability is cataloged as CVE-2026-9429 . It is possible to initiate the attack remotely. Furthermore, there is an exploit available.