Tenda Router Buffer Overflow Vulnerabilities

Stack-based buffer overflow in Tenda A15 router firmware version 15.13.07.13 allows unauthenticated remote attackers to achieve complete system compromise through a malicious file upload to the UploadCfg function. Public exploit code exists for this vulnerability, and no patch is currently available. The attack requires no user interaction and can be executed over the network with trivial complexity.

Buffer overflow in Tenda AC21 firmware version 16.03.08.16 allows authenticated remote attackers to achieve complete system compromise through crafted QoS configuration requests to the SetNetControlList endpoint. Public exploit code exists for this vulnerability, and no patch is currently available. An attacker with valid credentials can execute arbitrary code with full system privileges (confidentiality, integrity, and availability impact).