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{"analysis": {"en": {"generated_at": "2026-04-18T13:10:04.048848+00:00", "value": {"mitigation_remediation": ["Apply the most recent Tenda RX3 firmware update that implements bounds checking for the ssid_5g parameter in /goform/fast_setting_wifi_set, addressing CWE\u2011119 and CWE\u2011121.", "Until a firmware fix is applied, configure the router or upstream firewall to reject or truncate ssid_5g values longer than the defined limit, thereby mitigating the stack overflow identified as CWE\u2011121.", "Block or disable the /goform/fast_setting_wifi_set endpoint or the router\u2019s web interface from remote access to eliminate the attack vector, isolating the risk associated with the buffer overflow.", "Optionally, monitor router logs for anomalous attempts to access the vulnerable endpoint and temporarily change or disable the 5\u2011GHz SSID while remediation is applied."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The flaw affects the Tenda RX3 router, specifically firmware version 16.03.13.11. No other Tenda products or firmware revisions are mentioned as impacted in the available data.", "description_and_impact": "A stack-based buffer overflow exists in the /goform/fast_setting_wifi_set function of Tenda RX3 firmware. By manipulating the ssid_5g parameter, an attacker can trigger the overflow remotely, potentially executing arbitrary code on the device. The vulnerability is publicly documented and an exploit is available, giving attackers a straightforward path to compromise the router\u2019s control plane.", "risk_and_exploitability": "The issue receives a high CVSS score of 8.7. The EPSS score is reported as less than 1%, indicating a low exploitation probability in the wild, and the vulnerability is not listed in the CISA KEV catalog. The attack vector is remote, relying on access to the router\u2019s web interface; no local privileges are required. Attackers who succeed can gain full control of the device via the exposed endpoint."}}}}, "created": "2026-02-09T10:40:04.847425+00:00", "updated": "2026-04-18T13:15:25.717041+00:00", "vendors": ["tenda", "tenda$PRODUCT$rx3"]}