{"id":"CVE-2026-2459","aliases":["EUVD-2026-8463","GHSA-8hm4-jmvc-cfg9"],"status":"published","title":"A vulnerability exists in REB500 for an authenticated user with Installer role to access and...","description":"A vulnerability exists in REB500 for an authenticated user with Installer role to access and alter the contents of directories that the role is not authorized to do so.","severity":{"version":"4.0","score":7.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00372,"percentile":0.31371,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-267"],"published":"2026-02-24T13:21:42Z","modified":"2026-06-17T10:30:59Z","products":[{"vendor":"hitachi energy","product":"relion reb500"},{"vendor":"hitachienergy","product":"reb500_firmware"}],"references":[{"url":"https://publisher.hitachienergy.com/preview?DocumentID=8DBD000217\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2459"},{"url":"https://github.com/advisories/GHSA-8hm4-jmvc-cfg9"}],"sources":{"cve":[{"id":"CVE-2026-2459","description":"A vulnerability exists in REB500 for an authenticated user with Installer role to access and alter the contents of directories that the role is not authorized to do so.","status":"published","published":"2026-02-24T13:21:42.47Z","modified":"2026-02-28T02:22:21.519Z","cvss":[{"version":"4.0","score":7.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-267"],"updated_at":"2026-11-02T13:48:35.749498Z"}],"euvd":[{"id":"EUVD-2026-8463","description":"A vulnerability exists in REB500 for an authenticated user with Installer role to access and alter the contents of directories that the role is not authorized to do so.","status":"published","published":"2026-02-24T13:21:42Z","modified":"2026-02-28T02:22:21Z","cvss":[{"version":"4.0","score":7.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:48:13.147525Z"}],"ghsa":[{"id":"GHSA-8hm4-jmvc-cfg9","title":"A vulnerability exists in REB500 for an authenticated user with Installer role to access and...","description":"A vulnerability exists in REB500 for an authenticated user with Installer role to access and alter the contents of directories that the role is not authorized to do so.","status":"published","published":"2026-02-24T15:30:31Z","modified":"2026-02-26T18:31:38Z","cvss":[{"version":"4.0","score":7.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-267"],"updated_at":"2026-11-02T15:06:23.326773Z"}],"nvd":[{"id":"CVE-2026-2459","description":"A vulnerability exists in REB500 for an authenticated user with Installer role to access and alter the contents of directories that the role is not authorized to do so.","status":"published","published":"2026-02-24T14:16:23.477Z","modified":"2026-06-17T10:30:59.503Z","cvss":[{"version":"4.0","score":7.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-267"],"updated_at":"2026-11-02T14:12:06.63895Z"}]}}