{"id":"CVE-2026-72929","aliases":["EUVD-2026-73105","GHSA-43fc-f68q-94c4"],"status":"published","title":"Windows Installer Elevation of Privilege Vulnerability","description":"Improper validation of integrity check value in Windows Installer 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":"2026-11-11","score":0.0023,"percentile":0.13947,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-354"],"published":"2026-09-08T17:12:33Z","modified":"2026-11-10T21:31:20Z","products":[{"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 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"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_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72929","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72929"},{"url":"https://github.com/advisories/GHSA-43fc-f68q-94c4"}],"sources":{"cve":[{"id":"CVE-2026-72929","title":"Windows Installer Elevation of Privilege Vulnerability","description":"Improper validation of integrity check value in Windows Installer allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:12:33.805Z","modified":"2026-11-10T21:31:20.184Z","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-354"],"updated_at":"2026-11-10T22:48:53.557052Z"}],"euvd":[{"id":"EUVD-2026-73105","description":"Improper validation of integrity check value in Windows Installer allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:12:33Z","modified":"2026-11-10T21:31:20Z","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":"2026-11-10T22:23:53.008995Z"}],"ghsa":[{"id":"GHSA-43fc-f68q-94c4","title":"Improper validation of integrity check value in Windows Installer allows an authorized attacker...","description":"Improper validation of integrity check value in Windows Installer allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:33:10Z","modified":"2026-09-08T18:33:31Z","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-354"],"updated_at":"2026-11-02T15:11:33.442964Z"}],"nvd":[{"id":"CVE-2026-72929","description":"Improper validation of integrity check value in Windows Installer allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:20:17.257Z","modified":"2026-09-22T15:08:49.88Z","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-354"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}