{"id":"CVE-2026-119937","aliases":["EUVD-2026-122432","GHSA-3w83-jh6f-59v3"],"status":"published","title":"Kernel Streaming Service Driver Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges with a physical attack.","severity":{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00467,"percentile":0.40932,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-11-10T18:23:32Z","modified":"2026-11-10T21:33:38Z","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-2026-119937","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119937"},{"url":"https://github.com/advisories/GHSA-3w83-jh6f-59v3"}],"sources":{"cve":[{"id":"CVE-2026-119937","title":"Kernel Streaming Service Driver Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-11-10T18:23:32.75Z","modified":"2026-11-12T21:50:43.595Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T19:39:58.973959Z"}],"euvd":[{"id":"EUVD-2026-122432","description":"Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-11-10T18:23:32Z","modified":"2026-11-12T21:50:43Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-11T00:25:03.169314Z"}],"ghsa":[{"id":"GHSA-3w83-jh6f-59v3","title":"Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to...","description":"Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-11-10T21:33:37Z","modified":"2026-11-10T21:33:38Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T21:57:53.692707Z"}],"nvd":[{"id":"CVE-2026-119937","description":"Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-11-10T19:20:16.067Z","modified":"2026-11-10T19:20:16.183Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T22:21:32.984056Z"}]}}