Description
Improper access control in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – < 10.0.26100.8655 | 10.0.26100.8655 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 – < 10.0.26200.8655 | 10.0.26200.8655 |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 – < 10.0.28000.2269 | 10.0.28000.2269 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – < 10.0.26100.32995 | 10.0.26100.32995 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – < 10.0.26100.32995 | 10.0.26100.32995 |
Advisories 3
- WID-SEC-2026-1849 Microsoft Windows: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- NCSC-2026-0181 Kwetsbaarheden verholpen in Microsoft Windows NCSC-NL (Netherlands) · Jun 9, 2026
- MSRC-CVE-2026-45654 Secure Boot Security Feature Bypass Vulnerability Microsoft Security Response Center · Jun 9, 2026
References
- Secure Boot Security Feature Bypass Vulnerability vendor-advisory patch