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How the CVE Works
CVE-2025-48800 is a vulnerability in Windows BitLocker that allows an attacker with physical access to bypass disk encryption protections. The flaw stems from improper validation of pre-boot authentication mechanisms, enabling unauthorized access via a maliciously crafted boot device. Attackers can exploit this by intercepting or modifying the BitLocker key exchange during system startup, leading to full decryption of the protected drive without legitimate credentials.
DailyCVE Form
Platform: Windows BitLocker
Version: Pre-2025 patches
Vulnerability: Security bypass
Severity: Critical
Date: 07/08/2025
Prediction: Patch by 08/15/2025
What Undercode Say
Analytics:
Get-BitLockerVolume | fl
bcdedit /enum {current}
manage-bde -status
How Exploit
1. Boot malicious USB
2. Intercept key handshake
3. Decrypt drive via DMA
Protection from this CVE
- Disable DMA ports
- Enable Secure Boot
- Apply Microsoft patch
Impact
- Full disk decryption
- Data theft
- Privilege escalation
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
