{"id":"CVE-2026-105532","aliases":["EUVD-2026-122029","GHSA-47rh-wr28-qrwq"],"status":"published","title":"Windows Installer Elevation of Privilege Vulnerability","description":"Improper link resolution before file access ('link following') 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":"2026-11-14","score":0.00379,"percentile":0.32417,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-59"],"published":"2026-11-10T18:19:44Z","modified":"2026-11-10T21:32:28Z","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 11 version 26h2"},{"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)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105532","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105532"},{"url":"https://github.com/advisories/GHSA-47rh-wr28-qrwq"}],"sources":{"cve":[{"id":"CVE-2026-105532","title":"Windows Installer Elevation of Privilege Vulnerability","description":"Improper link resolution before file access ('link following') in Windows Installer allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-11-10T18:19:44.045Z","modified":"2026-11-13T18:08:33.753Z","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-59"],"updated_at":"2026-11-10T19:39:57.855077Z"}],"euvd":[{"id":"EUVD-2026-122029","description":"Improper link resolution before file access ('link following') in Windows Installer allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-11-10T18:19:44Z","modified":"2026-11-13T18:08:33Z","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":"2026-11-10T23:24:26.602648Z"}],"ghsa":[{"id":"GHSA-47rh-wr28-qrwq","title":"Improper link resolution before file access ('link following') in Windows Installer allows an...","description":"Improper link resolution before file access ('link following') in Windows Installer allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-11-10T21:32:21Z","modified":"2026-11-10T21:32:28Z","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-59"],"updated_at":"2026-11-10T21:57:48.570264Z"}],"nvd":[{"id":"CVE-2026-105532","description":"Improper link resolution before file access ('link following') in Windows Installer allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-11-10T19:17:53.513Z","modified":"2026-11-10T21:17:43.453Z","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-59"],"updated_at":"2026-11-11T00:21:53.860815Z"}]}}