{"id":"CVE-2026-112967","aliases":["EUVD-2026-121891","GHSA-4w86-jv6w-7pq3"],"status":"published","title":"Windows Xbox Live Networking Service Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Windows Xbox Live Networking Service allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.01154,"percentile":0.67505,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-11-10T18:18:26Z","modified":"2026-11-10T21:32:49Z","products":[{"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"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-112967","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112967"},{"url":"https://github.com/advisories/GHSA-4w86-jv6w-7pq3"}],"sources":{"cve":[{"id":"CVE-2026-112967","title":"Windows Xbox Live Networking Service Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Windows Xbox Live Networking Service allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:18:26.069Z","modified":"2026-11-13T18:07:18.067Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T19:39:58.44836Z"}],"euvd":[{"id":"EUVD-2026-121891","description":"Heap-based buffer overflow in Windows Xbox Live Networking Service allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:18:26Z","modified":"2026-11-13T18:07:18Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-10T23:24:32.765041Z"}],"ghsa":[{"id":"GHSA-4w86-jv6w-7pq3","title":"Heap-based buffer overflow in Windows Xbox Live Networking Service allows an unauthorized...","description":"Heap-based buffer overflow in Windows Xbox Live Networking Service allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T21:32:43Z","modified":"2026-11-10T21:32:49Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T21:57:50.285633Z"}],"nvd":[{"id":"CVE-2026-112967","description":"Heap-based buffer overflow in Windows Xbox Live Networking Service allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T19:18:46.937Z","modified":"2026-11-11T05:19:21.273Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-11T00:21:54.23974Z"}]}}