{"id":"CVE-2026-8067","aliases":["EUVD-2026-88686","GHSA-8w27-w4qm-ch74"],"status":"published","title":"An improper authorization vulnerability in the RTU500’s web application allows an authenticated...","description":"An improper authorization vulnerability in the end-of-life versions of RTU500’s 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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00228,"percentile":0.13768,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-09-29T09:33:52Z","modified":"2026-09-29T21:39:02Z","products":[{"vendor":"hitachi energy","product":"rtu500 series cmu firmware"}],"references":[{"url":"https://publisher.hitachienergy.com/preview?DocumentID=8DBD000251\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8067"},{"url":"https://github.com/advisories/GHSA-8w27-w4qm-ch74"}],"sources":{"cve":[{"id":"CVE-2026-8067","description":"An improper authorization vulnerability in the end-of-life versions of RTU500’s 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.","status":"published","published":"2026-09-29T09:33:52.627Z","modified":"2026-09-29T15:05:10.35Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T13:48:13.398044Z"}],"euvd":[{"id":"EUVD-2026-88686","description":"An improper authorization vulnerability in the end-of-life versions of RTU500’s 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.","status":"published","published":"2026-09-29T09:33:52Z","modified":"2026-09-29T15:05:10Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T17:27:51.995341Z"}],"ghsa":[{"id":"GHSA-8w27-w4qm-ch74","title":"An improper authorization vulnerability in the RTU500’s web application allows an authenticated...","description":"An improper authorization vulnerability in the RTU500’s 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.","status":"published","published":"2026-09-29T12:31:30Z","modified":"2026-09-29T12:31:38Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:12:33.186319Z"}],"nvd":[{"id":"CVE-2026-8067","description":"An improper authorization vulnerability in the end-of-life versions of RTU500’s 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.","status":"published","published":"2026-09-29T10:17:13.397Z","modified":"2026-09-29T21:39:02.57Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:52.413234Z"}]}}