{"id":"CVE-2019-6535","state":"PUBLISHED","title":"Mitsubishi Electric MELSEC-Q Series PLCs Resource Exhaustion","description":"Mitsubishi Electric Q03/04/06/13/26UDVCPU: serial number 20081 and prior, Q04/06/13/26UDPVCPU: serial number 20081 and prior, and Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: serial number 20101 and prior. A remote attacker can send specific bytes over Port 5007 that will result in an Ethernet stack crash and disruption to USB communication.","publishedAt":"2019-02-05T19:00:00.000Z","updatedAt":"2025-06-26T17:08:15.995Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"icscert"},"assigner":"icscert","products":["Mitsubishi Electric Q03/04/06/13/26UDVCPU","Mitsubishi Electric Q04/06/13/26UDPVCPU","Mitsubishi Electric Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU"],"affected":[{"vendor":"Mitsubishi Electric","product":"Q03/04/06/13/26UDVCPU","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"serial number 20081","versionType":"custom"}]},{"vendor":"Mitsubishi Electric","product":"Q04/06/13/26UDPVCPU","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"serial number 20081","versionType":"custom"}]},{"vendor":"Mitsubishi Electric","product":"Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"serial number 20101","versionType":"custom"}]}],"references":["http://www.securityfocus.com/bid/106771","https://www.cisa.gov/news-events/ics-advisories/icsa-19-029-02","https://ics-cert.us-cert.gov/advisories/ICSA-19-029-02"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T19:46:06.737Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2019/6xxx/CVE-2019-6535.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2019-6535","state":"PUBLISHED","datePublished":"2019-02-05T19:00:00.000Z","dateUpdated":"2025-06-26T17:08:15.995Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2019-01-22T00:00:00.000Z"},"containers":{"cna":{"title":"Mitsubishi Electric MELSEC-Q Series PLCs Resource Exhaustion","descriptions":[{"lang":"en","value":"Mitsubishi Electric Q03/04/06/13/26UDVCPU: serial number 20081 and prior, Q04/06/13/26UDPVCPU: serial number 20081 and prior, and Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: serial number 20101 and prior. A remote attacker can send specific bytes over Port 5007 that will result in an Ethernet stack crash and disruption to USB communication."}],"affected":[{"vendor":"Mitsubishi Electric","product":"Q03/04/06/13/26UDVCPU","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"serial number 20081","versionType":"custom"}]},{"vendor":"Mitsubishi Electric","product":"Q04/06/13/26UDPVCPU","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"serial number 20081","versionType":"custom"}]},{"vendor":"Mitsubishi Electric","product":"Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"serial number 20101","versionType":"custom"}]}],"references":[{"url":"http://www.securityfocus.com/bid/106771","name":"106771","tags":["vdb-entry","x_refsource_BID"]},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-19-029-02","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","description":"CWE-400","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2025-06-26T17:08:15.995Z"},"credits":[{"lang":"en","type":"finder","value":"Tri Quach of Amazon's Customer Fulfillment Technology Security (CFTS) group reported this vulnerability to the National Cybersecurity and Communications Integration Center (NCCIC)."}],"datePublic":"2019-01-29T07:00:00.000Z","solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Mitsubishi Electric has produced a new version of the firmware. Additional information about this vulnerability or Mitsubishi Electric's compensating control is available by contacting a local Mitsubishi Electric representative, which can be found at the following location: <a target=\"_blank\" rel=\"nofollow\" href=\"https://us.mitsubishielectric.com/fa/en/about-us/distributors\">https://us.mitsubishielectric.com/fa/en/about-us/distributors</a></p><p>Mitsubishi Electric strongly recommends users should operate the affected device behind a firewall.</p>"}],"value":"Mitsubishi Electric has produced a new version of the firmware. Additional information about this vulnerability or Mitsubishi Electric's compensating control is available by contacting a local Mitsubishi Electric representative, which can be found at the following location:  https://us.mitsubishielectric.com/fa/en/about-us/distributors \n\nMitsubishi Electric strongly recommends users should operate the affected device behind a firewall."}],"source":{"advisory":"ICSA-19-029-02","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"ics-cert@hq.dhs.gov","DATE_PUBLIC":"2019-01-29T00:00:00","ID":"CVE-2019-6535","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Mitsubishi Electric Q03/04/06/13/26UDVCPU: serial number 20081 and prior, Q04/06/13/26UDPVCPU: serial number 20081 and prior, and Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: serial number 20101 and prior.","version":{"version_data":[{"version_value":"Mitsubishi Electric Q03/04/06/13/26UDVCPU: serial number 20081 and prior, Q04/06/13/26UDPVCPU: serial number 20081 and prior, and Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: serial number 20101 and prior."}]}}]},"vendor_name":"ICS-CERT"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Mitsubishi Electric Q03/04/06/13/26UDVCPU: serial number 20081 and prior, Q04/06/13/26UDPVCPU: serial number 20081 and prior, and Q03UDECPU, Q04/06/10/13/20/26/50/100UDEHCPU: serial number 20101 and prior. A remote attacker can send specific bytes over Port 5007 that will result in an Ethernet stack crash."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"UNCONTROLLED RESOURCE CONSUMPTION ('RESOURCE EXHAUSTION') CWE-400"}]}]},"references":{"reference_data":[{"name":"106771","refsource":"BID","url":"http://www.securityfocus.com/bid/106771"},{"name":"https://ics-cert.us-cert.gov/advisories/ICSA-19-029-02","refsource":"MISC","url":"https://ics-cert.us-cert.gov/advisories/ICSA-19-029-02"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.securityfocus.com/bid/106771","name":"106771","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-19-029-02","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T20:23:21.974Z"}}]}}}