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How the CVE Works:
CVE-2025-26637 exploits a protection mechanism failure in Windows BitLocker, allowing unauthorized attackers with physical access to bypass disk encryption. The vulnerability stems from improper validation during the pre-boot authentication phase, enabling attackers to inject malicious code or extract decryption keys via direct memory access (DMA) attacks. This circumvents BitLocker’s full-disk encryption, exposing sensitive data.
DailyCVE Form:
Platform: Windows BitLocker
Version: Up to 10.0.22000
Vulnerability: Pre-boot auth bypass
Severity: Critical
Date: 07/03/2025
Prediction: Patch by 08/2025
What Undercode Say:
Analytics:
Get-BitLockerVolume | Select-Object MountPoint, EncryptionMethod, ProtectionStatus
Exploit:
sudo pcileech-fpga --memory_dump --target_bitlocker
Protection from this CVE:
- Disable DMA ports via BIOS.
- Enable Secure Boot + TPM 2.0.
- Apply Microsoft’s pending patch.
Impact:
- Full disk encryption bypass.
- Data exfiltration.
- Privilege escalation.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
