New BitUnlocker Downgrade Attack on Windows 11 Allows Access to Encrypted Disks in 5 Minutes

A new tool, BitUnlocker, reveals a practical downgrade attack against Microsoft’s BitLocker encryption, allowing attackers with physical access to decrypt protected volumes on patched Windows 11 machines in under 5 minutes by exploiting a crucial gap between patching and certificate revocation. The attack is rooted in CVE-2025-48804, one...

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