{"id":"CVE-2021-20612","state":"PUBLISHED","title":"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-P5","description":"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.","publishedAt":"2022-01-14T19:04:45.000Z","updatedAt":"2024-08-03T17:45:44.790Z","severity":null,"assigner":"Mitsubishi","products":["n/a MELSEC-F series FX3U-ENET; MELSEC-F series FX3U-ENET-L; MELSEC-F series FX3U-ENET-P502"],"affected":[{"vendor":"n/a","product":"MELSEC-F series FX3U-ENET; MELSEC-F series FX3U-ENET-L; MELSEC-F series FX3U-ENET-P502","versions":[{"version":"Firmware version 1.14 and prior","status":"affected"}]}],"references":["https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf","https://jvn.jp/vu/JVNVU93268332/index.html","https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01"],"weaknesses":[],"ingestedAt":"2026-10-29T19:47:55.610Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/20xxx/CVE-2021-20612.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-20612","state":"PUBLISHED","datePublished":"2022-01-14T19:04:45.000Z","dateUpdated":"2024-08-03T17:45:44.790Z","assignerShortName":"Mitsubishi","assignerOrgId":"e0f77b61-78fd-4786-b3fb-1ee347a748ad","dateReserved":"2020-12-17T00:00:00.000Z"},"containers":{"cna":{"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. 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Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Lack of Administrator Control over Security"}]}]},"references":{"reference_data":[{"name":"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf","refsource":"MISC","url":"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf"},{"name":"https://jvn.jp/vu/JVNVU93268332/index.html","refsource":"MISC","url":"https://jvn.jp/vu/JVNVU93268332/index.html"},{"name":"https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01","refsource":"MISC","url":"https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://jvn.jp/vu/JVNVU93268332/index.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:45:44.790Z"}}]}}}