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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": "2026-04-16T15:02:46.882489+00:00", "value": {"mitigation_remediation": ["Update the router to the latest firmware that contains a fix for the buffer overflow. ", "If no firmware update is available, disable or restrict access to the /goform/SafeMacFilter endpoint by applying a firewall rule or disabling the MAC filtering feature. ", "Monitor router logs for anomalous activity and apply an intrusion detection system to detect potential exploitation attempts."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Devices running Tenda F453 firmware 1.0.0.3 are affected. The product is a consumer router manufactured by Tenda. No other firmware versions were specified as vulnerable.", "description_and_impact": "The vulnerability resides in the fromSafeMacFilter function of the /goform/SafeMacFilter endpoint in Tenda F453 firmware 1.0.0.3. An attacker can send crafted input via the page argument, causing a buffer overflow that may compromise local system memory. This can lead to arbitrary code execution or denial of service. The weakness maps to CWE-119 and CWE-120.", "risk_and_exploitability": "The CVSS score of 8.7 indicates high severity, while the EPSS score of less than 1% suggests a low probability of exploitation for the moment. The vulnerability is not listed in the CISA KEV catalog, but public exploits have been disclosed and can be triggered remotely, likely via HTTP requests to /goform/SafeMacFilter. The attack does not require authentication and targets the wireless MAC filtering functionality."}}}}, "created": "2026-03-02T12:04:15.528846+00:00", "updated": "2026-04-16T15:15:39.037079+00:00", "vendors": ["tenda", "tenda$PRODUCT$f453"]}