{"id":"CVE-2026-69617","aliases":["EUVD-2026-73556","GHSA-q363-37w8-7887"],"status":"published","title":"Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability","description":"Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00264,"percentile":0.18398,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-09-08T17:16:05Z","modified":"2026-11-10T21:35:06Z","products":[{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69617","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69617"},{"url":"https://github.com/advisories/GHSA-q363-37w8-7887"}],"sources":{"cve":[{"id":"CVE-2026-69617","title":"Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability","description":"Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:16:05.874Z","modified":"2026-11-10T21:35:06.823Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-10T22:48:53.006191Z"}],"euvd":[{"id":"EUVD-2026-73556","description":"Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:16:05Z","modified":"2026-11-10T21:35:06Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T22:23:48.145704Z"}],"ghsa":[{"id":"GHSA-q363-37w8-7887","title":"Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to...","description":"Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:32:49Z","modified":"2026-09-08T18:32:50Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:11:31.116638Z"}],"nvd":[{"id":"CVE-2026-69617","description":"Out-of-bounds read in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:19:33.47Z","modified":"2026-09-21T14:24:17.36Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}