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How the CVE Works
CVE-2025-48003 is a vulnerability in Windows BitLocker that allows an attacker with physical access to bypass disk encryption protections. The flaw stems from improper validation during the pre-boot authentication phase, enabling an attacker to exploit a timing discrepancy or hardware-based fault injection to bypass authentication. This could allow unauthorized decryption of the protected drive without requiring valid credentials or recovery keys. The attack leverages weak cryptographic enforcement in the Trusted Platform Module (TPM) interaction, permitting an adversary to manipulate the boot process and gain access to encrypted data.
DailyCVE Form
Platform: Windows BitLocker
Version: Pre-boot Auth
Vulnerability: Bypass
Severity: Critical
Date: 07/15/2025
Prediction: Patch by 08/30/2025
What Undercode Say
Analytics:
Get-BitLockerVolume | fl Test-BitLockerIntegrity -MountPoint "C:"
// Fault injection PoC snippet
void trigger_early_boot() {
tpm_send_fault(0xDEADBEEF);
}
How Exploit:
- Physical access required
- Fault injection attack
- TPM state manipulation
Protection from this CVE:
- Disable auto-unlock
- Enable secure boot
- Firmware updates
Impact:
- Full disk decryption
- Data theft
- Bypassed authentication
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
