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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.6(2204)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "i3", "vendor": "tenda"}], "analysis": {"en": {"generated_at": "2026-04-16T10:23:00.265568+00:00", "value": {"mitigation_remediation": ["Upgrade the router firmware to a version that patches the formSetCfm stack-based overflow, as released by Tenda.", "If a firmware update is not yet available, restrict external access to the device by placing it behind a firewall or network segmentation and disabling remote web management.", "Monitor device logs and network traffic for abnormal requests to /goform/setcfm and block known malicious payloads using intrusion detection or packet filtering."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerable system is the Tenda i3 router running firmware version 1.0.0.6(2204). All units shipping with this firmware are affected; no other firmware versions are listed as impacted.", "description_and_impact": "A stack-based buffer overflow exists in the formSetCfm endpoint of Tenda i3 firmware 1.0.0.6(2204). By supplying a crafted funcpara1 argument to the /goform/setcfm route, a remote attacker can overflow the stack and gain arbitrary code execution on the device, impacting confidentiality, integrity, and availability. The flaw receives a CVSS score of 8.7.", "risk_and_exploitability": "The EPSS score is below 1\u202f% and the vulnerability is not listed in CISA\u2019s KEV catalog, yet an exploit has been published and remote exploitation is possible. Attackers can trigger the overflow by sending a crafted HTTP request to /goform/setcfm from outside the local network, indicating the attack vector is remote over the Internet. Despite the low exploitation probability, the high impact score makes the risk significant."}}}}, "created": "2026-03-10T14:10:25.650048+00:00", "updated": "2026-04-16T10:30:16.171558+00:00", "vendors": ["tenda", "tenda$PRODUCT$i3"]}