{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-11T14:25:33.560","vulnerabilities":[{"cve":{"id":"CVE-2021-20612","sourceIdentifier":"Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp","published":"2022-01-14T20:15:09.850","lastModified":"2024-11-21T05:46:52.860","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Lack of administrator control over security vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.14 and prior, FX3U-ENET-L Firmware version 1.14 and prior and FX3U-ENET-P502 Firmware version 1.14 and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition in communication function of the product or other unspecified effects by sending specially crafted packets to an unnecessary opening of TCP port. Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery."},{"lang":"es","value":"Una falta de control del administrador sobre la vulnerabilidad de seguridad en la serie MELSEC-F FX3U-ENET Firmware versión 1.14 y anteriores, FX3U-ENET-L Firmware versión 1.14 y anteriores y FX3U-ENET-P502 Firmware versión 1.14 y anteriores permite que un atacante remoto no autenticado cause una condición de denegación de servicio (DoS) en la función de comunicación del producto u otros efectos no especificados mediante el envío de paquetes especialmente diseñados a una apertura no necesaria del puerto TCP. El control por parte del PLC de la serie MELSEC-F no está afectado por esta vulnerabilidad, pero es necesario reiniciar el sistema para recuperarlo"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:C","baseScore":7.8,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-Other"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:mitsubishielectric:fx3u-enet_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"1.14","matchCriteriaId":"BF1D75C8-9E0A-4A2A-A9B6-3A944721DFC4"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:mitsubishielectric:fx3u-enet:-:*:*:*:*:*:*:*","matchCriteriaId":"5D1644E1-F748-46A3-8E09-FF5D53FD046F"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:mitsubishielectric:fx3u-enet-l_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"1.14","matchCriteriaId":"C54E1F47-E0A3-4C49-A219-84175C7B8108"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:mitsubishielectric:fx3u-enet-l:-:*:*:*:*:*:*:*","matchCriteriaId":"C8ACC832-E1EC-46DA-A2D1-CF1A3791A885"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:mitsubishielectric:fx3u-enet-p502_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"1.14","matchCriteriaId":"72D73FF4-10B4-4F70-B603-27775A21B9F1"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:mitsubishielectric:fx3u-enet-p502:-:*:*:*:*:*:*:*","matchCriteriaId":"69BA96DC-C462-4286-AE0E-32D141017E7F"}]}]}],"references":[{"url":"https://jvn.jp/vu/JVNVU93268332/index.html","source":"Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01","source":"Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp","tags":["Third Party Advisory","US Government Resource"]},{"url":"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf","source":"Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp","tags":["Vendor Advisory"]},{"url":"https://jvn.jp/vu/JVNVU93268332/index.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","US Government Resource"]},{"url":"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}