{"id":"CVE-2026-78523","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-78523","summary":"Use after free in Windows DNS allows an unauthorized attacker to deny service over a network.","details":"Use after free in Windows DNS allows an unauthorized attacker to deny service over a network.","published":"2026-09-08T18:20:47.950","modified":"2026-09-10T15:17:08.480","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"FIX","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78523"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T15:17:08.480"}}