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CVE-2026-26179

HighPublished

Windows Kernel Elevation of Privilege Vulnerability

Published: Apr 14, 2026
Updated: Aug 14, 2026
Assigning CNA: microsoft
Evidence observed: Aug 8, 2026

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

0.4%

Low · next 30 days

Percentile: 37.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.

Sources

CVE-2026-26179PoC
PoC for CVE-2026-26179 / ZDI-26-276, my very own Secure Kernel bug

Responsible use

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