{"id":"CVE-2026-50402","aliases":["EUVD-2026-44049","GHSA-49jm-rrr5-6685"],"status":"published","title":"NTFS Elevation of Privilege Vulnerability","description":"Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/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":"2026-11-10","score":0.00333,"percentile":0.26904,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-126","CWE-681"],"published":"2026-07-14T17:07:22Z","modified":"2026-11-10T22:37:55Z","exploits":[{"source":"pocgithub","id":"SY115/CVE-Writeups","title":"SY115/CVE-Writeups","date":"2026-07-19","url":"https://github.com/SY115/CVE-Writeups"}],"products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows server 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50402","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50402"},{"url":"https://github.com/advisories/GHSA-49jm-rrr5-6685"}],"sources":{"cve":[{"id":"CVE-2026-50402","title":"NTFS Elevation of Privilege Vulnerability","description":"Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T17:07:22.151Z","modified":"2026-11-10T22:37:55.309Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-681","CWE-126"],"updated_at":"2026-11-10T23:49:29.024872Z"}],"euvd":[{"id":"EUVD-2026-44049","description":"Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T17:07:22Z","modified":"2026-11-10T22:37:55Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-11T00:24:47.982419Z"}],"ghsa":[{"id":"GHSA-49jm-rrr5-6685","title":"Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to...","description":"Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T18:32:20Z","modified":"2026-07-14T18:32:27Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T15:09:29.53235Z"}],"nvd":[{"id":"CVE-2026-50402","description":"Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T18:17:42.6Z","modified":"2026-07-22T16:17:51.587Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-126","CWE-681"],"updated_at":"2026-11-02T14:12:29.489525Z"}]}}