{"id":"CVE-2026-105530","aliases":["EUVD-2026-122027","GHSA-pvqq-ggqx-hq43"],"status":"published","title":"Windows System Events Broker Information Disclosure Vulnerability","description":"Use after free in Windows System Events Broker allows an authorized attacker to disclose information locally.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/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":0.0045,"percentile":0.39679,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416","CWE-822"],"published":"2026-11-10T18:19:42Z","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-2026-105530","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105530"},{"url":"https://github.com/advisories/GHSA-pvqq-ggqx-hq43"}],"sources":{"cve":[{"id":"CVE-2026-105530","title":"Windows System Events Broker Information Disclosure Vulnerability","description":"Use after free in Windows System Events Broker allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T18:19:42.956Z","modified":"2026-11-13T18:08:32.734Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-416","CWE-822"],"updated_at":"2026-11-10T19:39:57.855077Z"}],"euvd":[{"id":"EUVD-2026-122027","description":"Use after free in Windows System Events Broker allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T18:19:42Z","modified":"2026-11-13T18:08:32Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T23:24:26.602648Z"}],"ghsa":[{"id":"GHSA-pvqq-ggqx-hq43","title":"Use after free in Windows System Events Broker allows an authorized attacker to disclose...","description":"Use after free in Windows System Events Broker allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T21:32:21Z","modified":"2026-11-10T21:32:28Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T21:57:47.623655Z"}],"nvd":[{"id":"CVE-2026-105530","description":"Use after free in Windows System Events Broker allows an authorized attacker to disclose information locally.","status":"published","published":"2026-11-10T19:17:52.823Z","modified":"2026-11-10T21:17:43.13Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-416","CWE-822"],"updated_at":"2026-11-11T00:21:53.860815Z"}]}}