{"id":"CVE-2026-56198","aliases":["EUVD-2026-73367","GHSA-ccq9-c76x-w7hc"],"status":"published","title":"Microsoft Trace Data Helper Elevation of Privilege Vulnerability","description":"Out-of-bounds read in Microsoft Trace Data Helper 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":0.00333,"percentile":0.26956,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-09-08T17:14:22Z","modified":"2026-11-10T21:33:10Z","products":[{"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_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-2026-56198","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56198"},{"url":"https://github.com/advisories/GHSA-ccq9-c76x-w7hc"}],"sources":{"cve":[{"id":"CVE-2026-56198","title":"Microsoft Trace Data Helper Elevation of Privilege Vulnerability","description":"Out-of-bounds read in Microsoft Trace Data Helper allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:14:22.511Z","modified":"2026-11-10T21:33:10.182Z","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-125"],"updated_at":"2026-11-10T22:48:51.483784Z"}],"euvd":[{"id":"EUVD-2026-73367","description":"Out-of-bounds read in Microsoft Trace Data Helper allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:14:22Z","modified":"2026-11-10T21:33:10Z","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":"2026-11-10T22:23:49.679186Z"}],"ghsa":[{"id":"GHSA-ccq9-c76x-w7hc","title":"Out-of-bounds read in Microsoft Trace Data Helper allows an authorized attacker to elevate...","description":"Out-of-bounds read in Microsoft Trace Data Helper allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:32:03Z","modified":"2026-09-08T18:32:09Z","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-125"],"updated_at":"2026-11-02T15:11:29.303164Z"}],"nvd":[{"id":"CVE-2026-56198","description":"Out-of-bounds read in Microsoft Trace Data Helper allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:17:42.793Z","modified":"2026-09-29T16:28:55.183Z","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-125"],"updated_at":"2026-11-02T14:12:44.436435Z"}]}}