CVE-2020-5656

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series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Fails to restrict access"}]}]}, "references": {"reference_data": [{"name": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-012.pdf", "refsource": "MISC", "url": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-012.pdf"}, {"name": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-012_en.pdf", "refsource": "MISC", "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-012_en.pdf"}, {"name": "https://jvn.jp/vu/JVNVU92513419/index.html", "refsource": "MISC", "url": "https://jvn.jp/vu/JVNVU92513419/index.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T08:39:25.477Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-012.pdf"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-012_en.pdf"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://jvn.jp/vu/JVNVU92513419/index.html"}]}]}, "cveMetadata": {"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "assignerShortName": "jpcert", "cveId": "CVE-2020-5656", "datePublished": "2020-10-30T03:35:53.000Z", "dateReserved": "2020-01-06T00:00:00.000Z", "dateUpdated": "2024-08-04T08:39:25.477Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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"cveTags": [], "descriptions": [{"lang": "en", "value": "Improper access control vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet."}, {"lang": "es", "value": "Vulnerabilidad de control de acceso inapropiado en la funci\u00f3n TCP/IP incluida en el firmware de la serie MELSEC iQ-R (los 2 d\u00edgitos del n\u00famero de serie son \"02\" o anteriores del EtherNet/IP Network Interface Module First RJ71EIP91, los 2 d\u00edgitos del n\u00famero de serie es \"01\" o anteriores del PROFINET IO Controller Module First RJ71PN92, los 2 d\u00edgitos del n\u00famero de serie son \"08\" o anteriores del High Speed Data Logger Module First RD81DL96, los 2 d\u00edgitos del n\u00famero de serie son \"04\" o anteriores del MES Interface Module First RD81MES96N, y los primeros de 2 d\u00edgitos del n\u00famero de serie son \"04\" o anteriores a OPC UA Server Module First RD81OPC96), permite a un atacante remoto no autenticado detener las funciones de red de los productos o ejecutar un programa malicioso por medio de un paquete especialmente dise\u00f1ado"}], "id": "CVE-2020-5656", "lastModified": "2026-06-17T03:22:02.413", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-11-02T21:15:33.960", "references": [{"source": "vultures@jpcert.or.jp", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/vu/JVNVU92513419/index.html"}, {"source": 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