CVE-2026-45654

Analyzed Analyzed - Analysis Complete

Secure Boot Bypass via Protection Mechanism Failure

Publication date: 2026-06-09

Last updated on: 2026-06-11

Assigner: Microsoft Corporation

Description

Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-09

Last Modified

2026-06-11

Generated

2026-06-30

AI Q&A

2026-06-09

EPSS Evaluated

2026-06-28

NVD

CVE-2026-45654

EUVD

EUVD-2026-35570

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_11_24h2	to 10.0.26100.8655 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8655 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8655 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8655 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_server_2025	to 10.0.26100.32995 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability is a protection mechanism failure in Windows Secure Boot. It allows an authorized attacker to locally bypass a security feature.

Impact Analysis

The vulnerability can impact you by allowing an authorized attacker to bypass important security features on your Windows system locally. This could lead to compromise of confidentiality and integrity of the system.

Compliance Impact

The vulnerability in Windows Secure Boot allows an authorized attacker to bypass a security feature locally, which could potentially undermine the integrity and security assurances required by compliance standards.

However, there is no specific information provided about the direct impact of this vulnerability on compliance with standards such as GDPR or HIPAA.

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