{"id":"CVE-2026-96176","aliases":["EUVD-2026-121498","GHSA-qm28-7v56-2r6m"],"status":"published","title":"Windows DNS Denial of Service Vulnerability","description":"Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.012,"percentile":0.68676,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-401"],"published":"2026-11-10T18:16:36Z","modified":"2026-11-10T21:34:28Z","products":[{"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 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96176","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96176"},{"url":"https://github.com/advisories/GHSA-qm28-7v56-2r6m"}],"sources":{"cve":[{"id":"CVE-2026-96176","title":"Windows DNS Denial of Service Vulnerability","description":"Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-11-10T18:16:36.296Z","modified":"2026-11-13T18:05:28.074Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-401"],"updated_at":"2026-11-10T19:40:00.230003Z"}],"euvd":[{"id":"EUVD-2026-121498","description":"Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-11-10T18:16:36Z","modified":"2026-11-13T18:05:28Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-11T00:25:04.513391Z"}],"ghsa":[{"id":"GHSA-qm28-7v56-2r6m","title":"Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker...","description":"Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-11-10T21:34:20Z","modified":"2026-11-10T21:34:28Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-401"],"updated_at":"2026-11-10T21:57:57.751909Z"}],"nvd":[{"id":"CVE-2026-96176","description":"Missing release of memory after effective lifetime in Windows DNS allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-11-10T19:22:17.803Z","modified":"2026-11-11T02:17:23.27Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-401"],"updated_at":"2026-11-11T07:23:51.574999Z"}]}}