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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.4cu.2313_b20191024"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "A7100RU", "source": "cna", "vendor": "Totolink"}, "product": "a7100ru", "vendor": "totolink"}], "analysis": {"en": {"generated_at": "2026-04-10T08:21:42.988772+00:00", "value": {"mitigation_remediation": ["Update the router firmware to the latest version that resolves the setVpnAccountCfg command injection.", "If a firmware update is unavailable, restrict external access to the device\u2019s web management interface or apply firewall rules to block traffic to the /cgi-bin/cstecgi.cgi path from untrusted networks.", "Disable or block the CGI handler for cstecgi.cgi if configuration allows, or isolate the device from the internet and monitor for suspicious requests."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the Totolink A7100RU router, specifically firmware version 7.4cu.2313_b20191024. Any device running this firmware edition is susceptible to remote exploitation.", "description_and_impact": "An OS command injection vulnerability exists in the setVpnAccountCfg function of the cstecgi.cgi CGI handler on the Totolink A7100RU router. An attacker can supply a specially crafted User parameter that allows arbitrary OS command execution on the router, potentially compromising its operating system and enabling full control over the device, including manipulation of network traffic, data exfiltration, and denial of service.", "risk_and_exploitability": "The flaw carries a CVSS score of 9.3, indicating critical severity. No EPSS score is provided, but the exploit is publicly known and actively used, and the vulnerability is not yet listed in the CISA KEV catalog. Attackers can reach the target remotely through the router\u2019s publicly exposed management interface, likely without authentication, making it highly exploitable."}}}}, "created": "2026-04-10T08:35:31.258767+00:00", "updated": "2026-04-10T09:26:32.427979+00:00", "vendors": ["totolink", "totolink$PRODUCT$a7100ru"]}