BitUnlocker exposes BitLocker downgrade gap
Security researchers have released a proof-of-concept attack that can unlock BitLocker-protected Windows 11 drives within minutes on systems that remain exposed to a legacy Secure Boot trust path, sharpening concern over the limits of software patching when certificate revocation has not been completed. The technique, called BitUnlocker, targets CVE-2025-48804, a BitLocker security-feature bypass tied to Windows Recovery Environment handling and physical access to a machine. The attack […]