CVE-2026-44807

High

Published: 09 June 2026

Published

09 June 2026

Modified

12 June 2026

KEV Added

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Patch

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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0022 11.7th percentile

Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-44807 is a high-severity Use After Free (CWE-416) vulnerability in Microsoft Windows 11 26H1. Its CVSS base score is 7.8 (High).

Operationally, ranked at the 11.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

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

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

microsoft

windows 11 26h1

≤ 10.0.28000.2269 · ≤ 10.0.28000.2269

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-416

Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.