Microsoft provides mitigation for “YellowKey” BitLocker bypass flaw (CVE-2026-45585)
2026-05-20T08:51:42Z•5dc92f38e748958020382d8ea92c7ca35d5c6654d47082327da717d8e8d2e1dc
BitLockerCVE-2026-45585MicrosoftWindowsYellowKeyfull-disk encryptionmitigationpatch pendingphysical-accesssecurity-feature-bypass
What happened
Microsoft disclosed CVE-2026-45585 (“YellowKey”), a security-feature-bypass vulnerability that can allow an attacker with physical access to bypass BitLocker full-disk encryption and access protected data. Microsoft is developing a patch but has published step-by-step mitigation guidance to protect affected Windows devices until an update is released. Exploitation requires physical access to the target device.
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- helpnetsecurity
- Record identifier
- 5dc92f38e748958020382d8ea92c7ca35d5c6654d47082327da717d8e8d2e1dc
- Enrichment time
- 2026-05-20T08:51:42Z
- AI-assisted enrichment
- Yes
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