CVE-2026-45654

high Microsoft
CVSS v3 Base Score
7.9
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Confidentiality
High
Integrity
High
Availability
None
Published: June 9, 2026 (30 days ago)
Last Modified: June 10, 2026
Vendor: Microsoft
Source: MITRE

Description

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

CWE

CWE-284

Affected Products

Microsoft Windows 11 Version 24H2Microsoft Windows 11 Version 25H2Microsoft Windows 11 version 26H1Microsoft Windows 11 Version 26H1Microsoft Windows Server 2025Microsoft Windows Server 2025 (Server Core installation)

References

🔗 msrc.microsoft.com