{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8805","assignerOrgId":"e0f77b61-78fd-4786-b3fb-1ee347a748ad","state":"PUBLISHED","assignerShortName":"Mitsubishi","dateReserved":"2026-05-18T05:51:43.565Z","datePublished":"2026-06-19T02:26:57.176Z","dateUpdated":"2026-06-22T14:50:21.057Z"},"containers":{"cna":{"providerMetadata":{"orgId":"e0f77b61-78fd-4786-b3fb-1ee347a748ad","shortName":"Mitsubishi","dateUpdated":"2026-06-19T02:26:57.176Z"},"title":"Denial-of-service (DoS) vulnerability in MELSEC iQ-F Series EtherNet/IP module","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound","type":"CWE"}]}],"impacts":[{"descriptions":[{"lang":"en","value":"Denial of Service (DoS)"}]}],"affected":[{"vendor":"Mitsubishi Electric Corporation","product":"Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP","versions":[{"status":"affected","version":"versions 1.000 and prior"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Integer Overflow or Wraparound vulnerability in the EtherNet/IP function of Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP module FX5-EIP versions 1.000 and prior allows a remote attacker to cause a denial-of-service (DoS) condition in the affected product by rapidly establishing a large number of TCP connections to it, resulting in an inconsistency in the product's internal connection management process and triggering improper memory access.","supportingMedia":[{"type":"text/html","base64":false,"value":"Integer Overflow or Wraparound vulnerability in the EtherNet/IP function of Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP module FX5-EIP versions 1.000 and prior allows a remote attacker to cause a denial-of-service (DoS) condition in the affected product by rapidly establishing a large number of TCP connections to it, resulting in an inconsistency in the product's internal connection management process and triggering improper memory access."}]}],"references":[{"url":"https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-002_en.pdf","tags":["vendor-advisory"]},{"url":"https://jvn.jp/vu/JVNVU97140216/","tags":["government-resource"]},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-169-05","tags":["government-resource"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-22T14:50:13.247647Z","id":"CVE-2026-8805","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-22T14:50:21.057Z"}}]}}