Description
Acceptance of extraneous untrusted data with trusted data in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 1507 | 10.0.10240.0 – < 10.0.10240.21073 | 10.0.10240.21073 |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – < 10.0.14393.8246 | 10.0.14393.8246 |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – < 10.0.17763.7558 | 10.0.17763.7558 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 – < 10.0.19044.6093 | 10.0.19044.6093 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – < 10.0.19045.6093 | 10.0.19045.6093 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – < 10.0.22621.5624 | 10.0.22621.5624 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 – < 10.0.22631.5624 | 10.0.22631.5624 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 – < 10.0.22631.5624 | 10.0.22631.5624 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – < 10.0.26100.4652 | 10.0.26100.4652 |
| Microsoft | Windows Server 2012 | 6.2.9200.0 – < 6.2.9200.25573 | 6.2.9200.25573 |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 – < 6.2.9200.25573 | 6.2.9200.25573 |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 – < 6.3.9600.22676 | 6.3.9600.22676 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 – < 6.3.9600.22676 | 6.3.9600.22676 |
| Microsoft | Windows Server 2016 | 10.0.14393.0 – < 10.0.14393.8246 | 10.0.14393.8246 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – < 10.0.14393.8246 | 10.0.14393.8246 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – < 10.0.17763.7558 | 10.0.17763.7558 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – < 10.0.17763.7558 | 10.0.17763.7558 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – < 10.0.20348.3932 | 10.0.20348.3932 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 – < 10.0.25398.1732 | 10.0.25398.1732 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – < 10.0.26100.4652 | 10.0.26100.4652 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – < 10.0.26100.4652 | 10.0.26100.4652 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
garatc/BitUnlocker ★ 250 · Apr 30, 2026
Downgrade attack for CVE-2025-48804
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 4
- WID-SEC-2025-1850 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 17, 2025
- WID-SEC-2025-1495 Microsoft Windows: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 2, 2025
- NCSC-2025-0213 Kwetsbaarheden verholpen in Microsoft Windows NCSC-NL (Netherlands) · Jul 8, 2025
- MSRC-CVE-2025-48804 Windows BitLocker Security Feature Bypass Vulnerability Microsoft Security Response Center · Jul 8, 2025
References
- Windows BitLocker Security Feature Bypass Vulnerability vendor-advisory patch