{"id":"CVE-2026-96983","aliases":["EUVD-2026-121835","GHSA-c7fg-jh36-59f7"],"status":"published","title":"Windows DNS Denial of Service Vulnerability","description":"Use after free in Windows DNS allows an unauthorized attacker to deny service over an adjacent network.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00397,"percentile":0.34475,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-11-10T18:17:56Z","modified":"2026-11-10T21:34:28Z","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-2026-96983","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96983"},{"url":"https://github.com/advisories/GHSA-c7fg-jh36-59f7"}],"sources":{"cve":[{"id":"CVE-2026-96983","title":"Windows DNS Denial of Service Vulnerability","description":"Use after free in Windows DNS allows an unauthorized attacker to deny service over an adjacent network.","status":"published","published":"2026-11-10T18:17:56.099Z","modified":"2026-11-13T18:06:46.532Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T19:40:00.230003Z"}],"euvd":[{"id":"EUVD-2026-121835","description":"Use after free in Windows DNS allows an unauthorized attacker to deny service over an adjacent network.","status":"published","published":"2026-11-10T18:17:56Z","modified":"2026-11-13T18:06:46Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-11T00:25:04.029196Z"}],"ghsa":[{"id":"GHSA-c7fg-jh36-59f7","title":"Use after free in Windows DNS allows an unauthorized attacker to deny service over an adjacent...","description":"Use after free in Windows DNS allows an unauthorized attacker to deny service over an adjacent network.","status":"published","published":"2026-11-10T21:34:23Z","modified":"2026-11-10T21:34:28Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T21:57:57.751909Z"}],"nvd":[{"id":"CVE-2026-96983","description":"Use after free in Windows DNS allows an unauthorized attacker to deny service over an adjacent network.","status":"published","published":"2026-11-10T19:22:21.257Z","modified":"2026-11-11T02:17:24.807Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-11T07:23:51.574999Z"}]}}