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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.3"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "F453", "source": "cna", "vendor": "Tenda"}, "product": "f453", "vendor": "tenda"}], "analysis": {"en": {"generated_at": "2026-04-16T15:01:57.696302+00:00", "value": {"mitigation_remediation": ["Update the F453 firmware to the latest version that patches the fromSetIpBind buffer overflow, if available from Tenda.", "Restrict access to the router\u2019s web interface by placing it behind a VLAN or firewall, limiting it to trusted internal networks only.", "If an update is not immediately possible, block or disable the /goform/SetIpBind endpoint via firewall or router ACLs to prevent remote exploitation."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Tenda F453 routers running firmware 1.0.0.3, which includes the vulnerable fromSetIpBind implementation. The flaw is present in the specific firmware 1.0.0.3 build; versions before this build may not be affected, but no other versions have been confirmed.", "description_and_impact": "The flaw is a classic buffer overflow in the fromSetIpBind function of the Tenda F453 firmware, triggered by an oversized \u201cpage\u201d argument to /goform/SetIpBind. An attacker who controls the input can overwrite critical stack data, eventually allowing arbitrary code execution or other destructive behavior. Because the vulnerable function is exposed via the router\u2019s web interface, an external attacker can trigger the exploit remotely with no authentication required, exposing the device to full compromise.", "risk_and_exploitability": "The CVSS score of 8.7 indicates a high severity impact. EPSS less than 1% signals a low but non\u2011zero probability of exploitation in the wild. The vulnerability has not yet been listed in the KEV catalog, but the public disclosure and remote trigger point mean that threat actors could develop and deploy exploits at any time. The simple nature of the overflow and the lack of authentication requirements make it relatively easy for attackers to mount attacks against exposed routers."}}}}, "created": "2026-03-02T12:04:13.041282+00:00", "updated": "2026-04-16T15:15:39.035897+00:00", "vendors": ["tenda", "tenda$PRODUCT$f453"]}