Security Bypass Vulnerability in Windows BitLocker by Microsoft
CVE-2025-48804

6.8MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1507
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21h2
Vendor
CVE Published:
8 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-48804?

A vulnerability in Windows BitLocker allows attackers to exploit the acceptance of extraneous untrusted data alongside trusted data. This flaw can enable unauthorized access through a physical attack, effectively bypassing critical security features intended to protect data integrity and confidentiality.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.21073

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.8246

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7558

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

BitUnlocker
Created by garatc

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.