PT-2026-47927 · Microsoft · Windows 11 Version 26H1

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-44811

NVD

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Fix

RCE

Heap Based Buffer Overflow

Weakness Enumeration

CWE-20

CWE-122

Related Identifiers

CVE-2026-44811

Affected Products

Windows 11 Version 26H1

References · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44811 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-44811 · Security Note