{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-7203", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-04-27T13:56:13.979Z", "datePublished": "2026-04-28T00:00:23.134Z", "dateUpdated": "2026-04-28T00:00:23.134Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-04-28T00:00:23.134Z"}, "title": "Totolink A8000RU CGI cstecgi.cgi setUrlFilterRules os command injection", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-78", "lang": "en", "description": "OS Command Injection"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-77", "lang": "en", "description": "Command Injection"}]}], "affected": [{"vendor": "Totolink", "product": "A8000RU", "versions": [{"version": "7.1cu.643_b20200521", "status": "affected"}], "cpes": ["cpe:2.3:o:totolink:a8000ru_firmware:*:*:*:*:*:*:*:*"], "modules": ["CGI Handler"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument enable results in os command injection. The attack can be launched remotely. The exploit has been made public and could be used."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 9.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P", "baseSeverity": "CRITICAL"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "CRITICAL"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "CRITICAL"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 10, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-04-27T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-04-27T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-04-27T16:01:26.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "LtzHust (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/359803", "name": "VDB-359803 | Totolink A8000RU CGI cstecgi.cgi setUrlFilterRules os command injection", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/359803/cti", "name": "VDB-359803 | CTI Indicators (IOB, IOC, TTP, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/801528", "name": "Submit #801528 | Totolink A8000RU 7.1cu.643_b20200521 Command Injection", "tags": ["third-party-advisory"]}, {"url": "https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_322/README.md", "tags": ["exploit"]}, {"url": "https://www.totolink.net/", "tags": ["product"]}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument enable results in os command injection. The attack can be launched remotely. The exploit has been made public and could be used."}], "id": "CVE-2026-7203", "lastModified": "2026-04-28T01:16:01.600", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 10.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-04-28T01:16:01.600", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_322/README.md"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/801528"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/359803"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/359803/cti"}, {"source": "cna@vuldb.com", "url": "https://www.totolink.net/"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-77"}, {"lang": "en", "value": "CWE-78"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.1cu.643_b20200521"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "A8000RU", "source": "cna", "vendor": "Totolink"}, "product": "a8000ru", "vendor": "totolink"}], "analysis": {"en": {"generated_at": "2026-04-28T12:36:18.534912+00:00", "value": {"mitigation_remediation": ["Apply the vendor\u2019s firmware update that removes the command injection from setUrlFilterRules in cstecgi.cgi", "Disable or restrict remote access to the /cgi-bin/cstecgi.cgi endpoint using network firewall or access\u2011control lists", "Implement input validation or WebACL rules that reject unexpected values for the enable parameter to block command injection attempts"], "summary": {"action": "Immediate Patch", "impact": "Remote OS Command Execution via CGI handler"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Totolink A8000RU units running firmware version 7.1cu.643_b20200521. Users of this model and firmware revision must verify whether they are running the affected build.", "description_and_impact": "A command injection flaw exists in the setUrlFilterRules function of /cgi-bin/cstecgi.cgi on the Totolink A8000RU router. By manipulating the enable argument, an attacker can execute arbitrary operating\u2011system commands on the device. The weakness is an instance of CWE\u201177 and CWE\u201178, allowing the attacker to gain complete control of the router\u2019s operating system. Remote exploitation is possible because the vulnerable CGI endpoint is exposed over the network, and an exploit has already been released to the public.", "risk_and_exploitability": "The CVSS score of 9.3 indicates critical severity, and while EPSS data is not currently available, the public release of an exploitation script demonstrates that the flaw is actively being used. The vulnerability is not listed in the CISA KEV catalog, but the remote nature of the attack and the availability of a working exploit mean that risk to impacted systems is high. Attackers must be able to reach the router over the network to send crafted requests to /cgi-bin/cstecgi.cgi; no local privilege escalation is required in order to trigger the vulnerability."}}}}, "created": "2026-04-28T04:30:20.926365+00:00", "updated": "2026-04-28T12:45:31.386788+00:00", "vendors": ["totolink", "totolink$PRODUCT$a8000ru"]}