CVE-2026-32220

UEFI Secure Boot Security Feature Bypass Vulnerability

State: Published
Severity: 4.4 Medium
Published: Apr 14, 2026
Updated: Oct 15, 2026
Reserved: Mar 11, 2026

Description

Improper access control in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.

Scores

CVSS	Score	Vector	Source
3.1	4.4 Medium	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.8246Affected
Windows 11 Version 25H2Microsoft	10.0.26200.0 to before 10.0.26200.8246Affected
Windows 11 version 26H1Microsoft	10.0.28000.0 to before 10.0.28000.1836Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.32690Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.32690Affected

References

UEFI Secure Boot Security Feature Bypass Vulnerabilityvendor-advisorypatch

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