{"id":"CVE-2026-49173","aliases":["EUVD-2026-43987","GHSA-62c2-hmjm-mpm6"],"status":"published","title":"Windows Kernel Elevation of Privilege Vulnerability","description":"Use after free in Windows Kernel 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":"2026-11-10","score":0.00333,"percentile":0.26898,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-07-14T17:04:32Z","modified":"2026-11-01T17:32:19Z","products":[{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows_11_26h1"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49173","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49173"},{"url":"https://github.com/advisories/GHSA-62c2-hmjm-mpm6"}],"sources":{"cve":[{"id":"CVE-2026-49173","title":"Windows Kernel Elevation of Privilege Vulnerability","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T17:04:32.213Z","modified":"2026-11-01T17:32:19.73Z","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-416"],"updated_at":"2026-11-02T13:35:10.963527Z"}],"euvd":[{"id":"EUVD-2026-43987","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T17:04:32Z","modified":"2026-11-01T17:32:19Z","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":"2026-11-02T16:58:49.161713Z"}],"ghsa":[{"id":"GHSA-62c2-hmjm-mpm6","title":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T18:32:00Z","modified":"2026-07-14T18:32:06Z","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-416"],"updated_at":"2026-11-02T15:09:28.277582Z"}],"nvd":[{"id":"CVE-2026-49173","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T17:16:52.39Z","modified":"2026-10-24T21:10:00.13Z","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-416"],"updated_at":"2026-11-02T14:12:29.114188Z"}]}}