CVE-2026-45654

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

CVSS v3 7.9 HIGH

7.9^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.5 / Impact : 5.8

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45654	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_11_24h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_11_24h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_25h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_11_25h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:*
	cpe:2.3:o:microsoft:windows_11_26h1:::::::x64:*
	cpe:2.3:o:microsoft:windows_server_2025:::::::x64:*

History

11 Jun 2026, 18:51

Type	Values Removed	Values Added
CPE		cpe:2.3:o:microsoft:windows_11_26h1:::::::x64:* cpe:2.3:o:microsoft:windows_11_24h2:::::::x64:* cpe:2.3:o:microsoft:windows_11_24h2:::::::arm64:* cpe:2.3:o:microsoft:windows_11_25h2:::::::arm64:* cpe:2.3:o:microsoft:windows_11_25h2:::::::x64:* cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:* cpe:2.3:o:microsoft:windows_server_2025:::::::x64:*
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45654 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45654 - Vendor Advisory
First Time		Microsoft windows 11 24h2 Microsoft windows Server 2025 Microsoft windows 11 25h2 Microsoft Microsoft windows 11 26h1

09 Jun 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-09 17:17

Updated : 2026-06-11 18:51

NVD link : CVE-2026-45654

Mitre link : CVE-2026-45654

CVE.ORG link : CVE-2026-45654

JSON object : View

Products Affected

microsoft

windows_11_25h2
windows_11_24h2
windows_11_26h1
windows_server_2025

CWE

CWE-284

Improper Access Control

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