{"id":"CVE-2026-102200","aliases":["EUVD-2026-121567","GHSA-mp53-235g-5mgq"],"status":"published","title":"Windows NTFS Tampering Vulnerability","description":"Time-of-check time-of-use (toctou) race condition in Windows NTFS allows an authorized attacker to perform tampering locally.","severity":{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00214,"percentile":0.11785,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2026-11-10T18:15:26Z","modified":"2026-11-10T21:32:22Z","products":[{"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 23h2"},{"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 11 version 26h2"},{"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)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102200","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102200"},{"url":"https://github.com/advisories/GHSA-mp53-235g-5mgq"}],"sources":{"cve":[{"id":"CVE-2026-102200","title":"Windows NTFS Tampering Vulnerability","description":"Time-of-check time-of-use (toctou) race condition in Windows NTFS allows an authorized attacker to perform tampering locally.","status":"published","published":"2026-11-10T18:15:26.957Z","modified":"2026-11-13T18:04:21.069Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-10T19:39:57.855077Z"}],"euvd":[{"id":"EUVD-2026-121567","description":"Time-of-check time-of-use (toctou) race condition in Windows NTFS allows an authorized attacker to perform tampering locally.","status":"published","published":"2026-11-10T18:15:26Z","modified":"2026-11-13T18:04:21Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T23:24:26.253897Z"}],"ghsa":[{"id":"GHSA-mp53-235g-5mgq","title":"Time-of-check time-of-use (toctou) race condition in Windows NTFS allows an authorized attacker...","description":"Time-of-check time-of-use (toctou) race condition in Windows NTFS allows an authorized attacker to perform tampering locally.","status":"published","published":"2026-11-10T21:32:16Z","modified":"2026-11-10T21:32:22Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-367"],"updated_at":"2026-11-10T21:57:47.623655Z"}],"nvd":[{"id":"CVE-2026-102200","description":"Time-of-check time-of-use (toctou) race condition in Windows NTFS allows an authorized attacker to perform tampering locally.","status":"published","published":"2026-11-10T19:17:39.573Z","modified":"2026-11-10T22:17:47.803Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-367"],"updated_at":"2026-11-11T00:21:53.860815Z"}]}}