CVE-2026-45654 HIGH

CVE-2026-45654: Secure Boot Security Feature Bypass Vulnerability

Vendor Microsoft
Product Windows 11 Version 24H2
Weakness CWE-284
Published June 9, 2026
Last update June 15, 2026

CVSS base score

7.9/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

June 9, 2026 CVE published
June 15, 2026 Record updated