Tenda F456 Buffer Overflow Vulnerabilities

Remote authenticated buffer overflow in Tenda F456 1.0.0.5 router allows complete device compromise via the DHCP server configuration handler. A low-privileged attacker can send a crafted HTTP request with malicious 'dips' parameter to /goform/GstDhcpSetSer, triggering a buffer overflow in the httpd service that enables arbitrary code execution with full system control. Public exploit code is available on GitHub (EPSS exploitation probability data not provided, not listed in CISA KEV at time of analysis).

Remote code execution in Tenda F456 router firmware 1.0.0.5 allows authenticated attackers to compromise device integrity and confidentiality via buffer overflow in the WAN configuration interface. The vulnerability exploits the fromAdvSetWan function's improper handling of the wanmode parameter, enabling complete device takeover. Public exploit code exists on GitHub (Litengzheng/vuldb_new), significantly lowering the barrier to exploitation. EPSS data not available, but the combination of network attack vector, low complexity (AC:L), and publicly available POC makes this a realistic threat to exposed management interfaces.

Remote authenticated buffer overflow in Tenda F456 1.0.0.5 httpd allows attackers to compromise router integrity and availability via crafted WrlExtraSet requests. Exploitation occurs through the formWrlExtraSet function when manipulating the 'Go' parameter at /goform/WrlExtraSet endpoint. Public exploit code is available on GitHub (Litengzheng/vuldb_new), enabling straightforward weaponization. CVSS 7.4 (High) with CVSS v4.0 Exploit Maturity: Proof-of-Concept confirms exploitability. While requiring low-privilege authentication (PR:L), the network attack vector (AV:N) and low complexity (AC:L) make this accessible to remote attackers with basic router credentials, commonly obtained via credential stuffing or default password exploitation.

Buffer overflow in Tenda F456 router version 1.0.0.5 allows authenticated remote attackers to achieve arbitrary code execution with high impact to confidentiality, integrity, and availability. The vulnerability resides in the fromSetIpBind function of the httpd daemon's /goform/SetIpBind endpoint, exploitable via malformed 'page' parameter input. Public exploit code exists on GitHub (Litengzheng/vuldb_new), elevating real-world risk despite requiring low-privilege authentication (CVSS 7.4, EPSS data not provided, not in CISA KEV at time of analysis).

Buffer overflow in Tenda F456 router firmware 1.0.0.5 allows authenticated remote attackers to achieve full device compromise through the PPTP user management interface. The vulnerability exists in the fromPPTPUserSetting function within the httpd component, exploitable via manipulation of the 'delno' parameter sent to /goform/PPTPUserSetting. Public exploit code is available on GitHub, significantly lowering the barrier to exploitation, though no CISA KEV listing or widespread exploitation has been confirmed at time of analysis.