{"id":"CVE-2020-5666","state":"PUBLISHED","title":"Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions fr","description":"Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51') allows a remote attacker to cause an error in a CPU unit via a specially crafted HTTP packet, which may lead to a denial-of-service (DoS) condition in execution of the program and its communication.","publishedAt":"2020-11-16T00:49:55.000Z","updatedAt":"2024-08-04T08:39:25.681Z","severity":null,"assigner":"jpcert","products":["Mitsubishi Electric Corporation MELSEC iQ-R Series CPU Modules"],"affected":[{"vendor":"Mitsubishi Electric Corporation","product":"MELSEC iQ-R Series CPU Modules","versions":[{"version":"R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51'","status":"affected"}]}],"references":["https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-015_en.pdf","https://jvn.jp/jp/JVN44764844/index.html","https://jvn.jp/en/jp/JVN44764844/index.html","https://us-cert.cisa.gov/ics/advisories/icsa-20-317-01"],"weaknesses":[],"ingestedAt":"2026-10-29T19:47:35.543Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/5xxx/CVE-2020-5666.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-5666","state":"PUBLISHED","datePublished":"2020-11-16T00:49:55.000Z","dateUpdated":"2024-08-04T08:39:25.681Z","assignerShortName":"jpcert","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","dateReserved":"2020-01-06T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51') allows a remote attacker to cause an error in a CPU unit via a specially crafted HTTP packet, which may lead to a denial-of-service (DoS) condition in execution of the program and its communication."}],"affected":[{"vendor":"Mitsubishi Electric Corporation","product":"MELSEC iQ-R Series CPU Modules","versions":[{"version":"R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51'","status":"affected"}]}],"references":[{"url":"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-015_en.pdf","tags":["x_refsource_MISC"]},{"url":"https://jvn.jp/jp/JVN44764844/index.html","tags":["x_refsource_MISC"]},{"url":"https://jvn.jp/en/jp/JVN44764844/index.html","tags":["x_refsource_MISC"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-20-317-01","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"description":"Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51') allows a remote attacker to cause an error in a CPU unit via a specially crafted HTTP packet, which may lead to a denial-of-service (DoS) condition in execution of the program and its communication.","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"jpcert","dateUpdated":"2020-11-16T00:49:54.000Z","orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"vultures@jpcert.or.jp","ID":"CVE-2020-5666","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"MELSEC iQ-R Series CPU Modules","version":{"version_data":[{"version_value":"R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51'"}]}}]},"vendor_name":"Mitsubishi Electric Corporation"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51') allows a remote attacker to cause an error in a CPU unit via a specially crafted HTTP packet, which may lead to a denial-of-service (DoS) condition in execution of the program and its communication."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51') allows a remote attacker to cause an error in a CPU unit via a specially crafted HTTP packet, which may lead to a denial-of-service (DoS) condition in execution of the program and its communication."}]}]},"references":{"reference_data":[{"name":"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-015_en.pdf","refsource":"MISC","url":"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-015_en.pdf"},{"name":"https://jvn.jp/jp/JVN44764844/index.html","refsource":"MISC","url":"https://jvn.jp/jp/JVN44764844/index.html"},{"name":"https://jvn.jp/en/jp/JVN44764844/index.html","refsource":"MISC","url":"https://jvn.jp/en/jp/JVN44764844/index.html"},{"name":"https://us-cert.cisa.gov/ics/advisories/icsa-20-317-01","refsource":"MISC","url":"https://us-cert.cisa.gov/ics/advisories/icsa-20-317-01"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-015_en.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://jvn.jp/jp/JVN44764844/index.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://jvn.jp/en/jp/JVN44764844/index.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-20-317-01","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T08:39:25.681Z"}}]}}}