{"id":"CVE-2026-45657","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-45657","summary":"Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.","details":"Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.","published":"2026-06-09T17:17:33.000","modified":"2026-07-23T08:10:00.137","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.15478,"percentile":0.96533,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45657"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-07-23T08:10:00.137"}}