{"id":"CVE-2026-72947","aliases":["EUVD-2026-73343","GHSA-w69f-g69f-235j"],"status":"published","title":"Windows File History Service Elevation of Privilege Vulnerability","description":"Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00268,"percentile":0.19065,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-191"],"published":"2026-09-08T17:14:03Z","modified":"2026-11-10T21:32:53Z","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 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 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_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_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72947","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72947"},{"url":"https://github.com/advisories/GHSA-w69f-g69f-235j"}],"sources":{"cve":[{"id":"CVE-2026-72947","title":"Windows File History Service Elevation of Privilege Vulnerability","description":"Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:14:03.928Z","modified":"2026-11-10T21:32:53.516Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-191"],"updated_at":"2026-11-10T22:48:53.557052Z"}],"euvd":[{"id":"EUVD-2026-73343","description":"Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:14:03Z","modified":"2026-11-10T21:32:53Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T22:23:50.485329Z"}],"ghsa":[{"id":"GHSA-w69f-g69f-235j","title":"Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized...","description":"Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:33:12Z","modified":"2026-09-08T18:33:32Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T15:11:33.442964Z"}],"nvd":[{"id":"CVE-2026-72947","description":"Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:20:20.04Z","modified":"2026-09-21T20:01:41.583Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"},{"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":"primary"}],"cwes":["CWE-191"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}