{"id":"CVE-2026-44811","published":"2026-06-09T17:06:19Z","modified":"2026-09-24T13:45:09Z","title":"Windows DWM Core Library Elevation of Privilege Vulnerability","vendor":"Microsoft","product":"Windows 11 version 26H1","tier":"tail","description":{"text":"Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00267,"percentile":0.18794,"provenance":"source"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"},{"id":"CWE-20","name":"Improper Input Validation"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44811","tags":["vendor-advisory","patch"]}],"priority":{"score":9.2,"factors":[{"name":"EPSS percentile","points":3.76},{"name":"CVSS severity","points":5.46}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"Windows 11 version 26H1","versions":[">= 10.0.28000.0, < 10.0.28000.2269"]}],"euvd":{"id":"EUVD-2026-35747","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-20"}}