{"id":"CVE-2026-112789","aliases":["EUVD-2026-121863","GHSA-f2fp-fr6r-c5v4"],"status":"published","title":"Windows Installer Information Disclosure Vulnerability","description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to disclose information locally.","severity":{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00278,"percentile":0.20484,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-362"],"published":"2026-11-10T18:18:11Z","modified":"2026-11-10T21:32:48Z","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-2026-112789","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112789"},{"url":"https://github.com/advisories/GHSA-f2fp-fr6r-c5v4"}],"sources":{"cve":[{"id":"CVE-2026-112789","title":"Windows Installer Information Disclosure Vulnerability","description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T18:18:11.116Z","modified":"2026-11-13T18:07:02.961Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-362"],"updated_at":"2026-11-10T19:39:58.44836Z"}],"euvd":[{"id":"EUVD-2026-121863","description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T18:18:11Z","modified":"2026-11-13T18:07:02Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T23:24:32.395185Z"}],"ghsa":[{"id":"GHSA-f2fp-fr6r-c5v4","title":"Concurrent execution using shared resource with improper synchronization ('race condition') in...","description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T21:32:40Z","modified":"2026-11-10T21:32:48Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-362"],"updated_at":"2026-11-10T21:57:50.285633Z"}],"nvd":[{"id":"CVE-2026-112789","description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T19:18:40.247Z","modified":"2026-11-10T21:18:33.643Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-362"],"updated_at":"2026-11-11T00:21:54.23974Z"}]}}