{"id":"CVE-2026-113744","published":"2026-10-21T02:17:07.053","lastModified":"2026-10-21T14:26:26.470","description":"A security vulnerability has been detected in Tenda AC19 16.03.10.07. The impacted element is the function formSetFirewallCfg of the file /goform/SetFirewallCfg of the component httpd Web Management Service. Such manipulation of the argument firewallEn leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.","cvssScore":10,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cwes":["CWE-119","CWE-121"],"vendors":[],"products":[],"references":[{"url":"https://github.com/henrythekingofuk/TendaCVE","tags":[]},{"url":"https://vuldb.com/cve/CVE-2026-113744","tags":[]},{"url":"https://vuldb.com/submit/1018542","tags":[]},{"url":"https://vuldb.com/vuln/422925","tags":[]},{"url":"https://vuldb.com/vuln/422925/cti","tags":[]},{"url":"https://www.tenda.com.cn/","tags":[]}],"exploitRefs":[{"url":"https://github.com/henrythekingofuk/TendaCVE","tags":[]}],"hasPoc":true,"ai":{"summary":"A stack-based buffer overflow in the formSetFirewallCfg function of Tenda AC19 firmware v16.03.10.07 allows remote attackers to overwrite memory via the firewallEn parameter, potentially leading to arbitrary code execution.","exploitability":"Exploitation is trivial for remote attackers as no authentication or user interaction is required and a public exploit exists.","blast_radius":"Successful exploitation could allow full system compromise including remote code execution, data theft, and service disruption across the vulnerable device.","remediation":"Upgrade to firmware version 16.03.10.08 or later, if available; otherwise, disable the web management interface or restrict access to the /goform/SetFirewallCfg endpoint via firewall rules.","detection":"Look for HTTP POST requests to /goform/SetFirewallCfg with abnormally large firewallEn parameter values (>256 bytes) in web server access logs; also monitor for unexpected restarts or crashes of the httpd process.","tags":["buffer-overflow","stack-overflow","rce","web","firmware","remote-exploit"],"model":"garnet-coder","analyzedAt":"2026-10-24T08:44:47.925Z"}}