{"id":"CVE-2026-69299","aliases":["EUVD-2026-73434","GHSA-246x-x78r-crmr"],"status":"published","title":"Microsoft COM for Windows Elevation of Privilege Vulnerability","description":"Use after free in Microsoft COM for Windows allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/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":0.00264,"percentile":0.18413,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-09-08T17:14:58Z","modified":"2026-11-10T21:33:51Z","products":[{"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 server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69299","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69299"},{"url":"https://github.com/advisories/GHSA-246x-x78r-crmr"}],"sources":{"cve":[{"id":"CVE-2026-69299","title":"Microsoft COM for Windows Elevation of Privilege Vulnerability","description":"Use after free in Microsoft COM for Windows allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:14:58.95Z","modified":"2026-11-10T21:33:51.992Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/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":"2026-11-10T22:48:52.144232Z"}],"euvd":[{"id":"EUVD-2026-73434","description":"Use after free in Microsoft COM for Windows allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T17:14:58Z","modified":"2026-11-10T21:33:51Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T22:23:48.645955Z"}],"ghsa":[{"id":"GHSA-246x-x78r-crmr","title":"Use after free in Microsoft COM for Windows allows an authorized attacker to elevate privileges...","description":"Use after free in Microsoft COM for Windows allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:32:21Z","modified":"2026-09-08T18:32:30Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:11:30.562219Z"}],"nvd":[{"id":"CVE-2026-69299","description":"Use after free in Microsoft COM for Windows allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-09-08T18:18:45.547Z","modified":"2026-09-24T12:54:45.64Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}