Tenda JD12L Buffer Overflow Flaws

Stack-based buffer overflow in the Tenda JD12L router (firmware 16.03.53.23) lets remote attackers corrupt memory via the 'page' parameter handled by the fromNatStaticSetting function at the /goform/NatStaticSetting endpoint. Publicly available exploit code exists, and the CVSS 4.0 vector (PR:L) indicates an authenticated user on the device's web interface can trigger high confidentiality, integrity and availability impact. There is no public exploit identified as actively used in the wild - exploitation is proof-of-concept only at this time.

Stack-based buffer overflow in the Tenda JD12L router (firmware 16.03.53.23) lets remote attackers corrupt memory by sending an oversized startIp argument to the formSetPPTPServer handler at /goform/SetPptpServerCfg, potentially achieving denial of service or arbitrary code execution on the device. The flaw is reachable over the network and publicly available exploit code exists, though it is not listed in CISA KEV and the CVSS 4.0 vector indicates low-privilege (authenticated) access is required. EPSS data was not provided, so widespread automated exploitation cannot be confirmed.

Stack-based buffer overflow in the Tenda JD12L router (firmware 16.03.53.23) lets remote, low-privileged attackers corrupt memory by supplying an oversized shareSpeed value to the fromSetWifiGusetBasic handler at /goform/WifiGuestSet, enabling denial of service and potential remote code execution on the device. Publicly available exploit code exists, though there is no public exploit identified as actively used in the wild. The EPSS-style risk is moderate per the CVSS 4.0 base score of 7.4 (HIGH), and CISA KEV does not list it.

Stack-based buffer overflow in the Tenda JD12L router (firmware 16.03.53.23) allows remote attackers to corrupt memory by manipulating the security_5g argument sent to the formWifiBasicSet handler at /goform/WifiBasicSet, potentially achieving denial of service or arbitrary code execution on the device. The flaw is network-reachable but, per the CVSS 4.0 vector, requires low-level authentication (PR:L), and publicly available exploit code exists. There is no public exploit identified as actively exploited in CISA KEV, and the EPSS score was not provided.

Stack-based buffer overflow in the Tenda JD12L router (firmware 16.03.53.23) lets a remote attacker corrupt memory by manipulating the 'page' parameter handled by the fromAddressNat function at the /goform/addressNat endpoint, potentially achieving code execution or device crash. Publicly available exploit code exists and the issue was disclosed by VulDB, though there is no public exploit identified as actively exploited in the wild. With a CVSS 4.0 base score of 7.4 and PR:L, exploitation requires some level of authenticated access to the web management interface.