CVE-2026-8067

{"id": "CVE-2026-8067", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-8067", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-29T15:04:54.700468Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cybersecurity@hitachienergy.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "cybersecurity@hitachienergy.com", "affectedData": [{"vendor": "Hitachi Energy", "product": "RTU500 series CMU firmware", "versions": [{"status": "affected", "version": "9.0", "lessThan": "12.0", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-09-29T10:17:13.397", "references": [{"url": "https://publisher.hitachienergy.com/preview?DocumentID=8DBD000251&LanguageCode=en&DocumentPartId=&Action=Launch", "source": "cybersecurity@hitachienergy.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "cybersecurity@hitachienergy.com", "description": [{"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "An improper authorization vulnerability in the end-of-life versions of RTU500\u2019s web application allows an authenticated user to trigger the RTU500 to reboot through the reset endpoint. Successful exploitation could cause temporary device unavailability and disruption of its intended operation."}], "lastModified": "2026-09-29T21:39:02.570", "sourceIdentifier": "cybersecurity@hitachienergy.com"}