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Windows BitLocker zero-day gives access to protected drives, PoC released

A cybersecurity researcher has published proof-of-concept (PoC) exploits for two unpatched Microsoft Windows vulnerabilities named YellowKey and GreenPlasma, which are a BitLocker bypass and a privilege-esc

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audit trail / provenance3

Provenance

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severity.upliftheuristicn/a
CVE or advisory identifiers detected — floor raised to at least high.
severity.upliftheuristicn/a
Active exploitation / in-the-wild language detected — floor raised to at least high.
severity.upliftheuristicn/a
Combined zero-day/exploit + ransomware/mass-impact signals → critical.

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Sources

https://www.bleepingcomputer.com/news/security/windows-bitlocker-zero-day-gives-access-to-protected-drives-poc-released/

Curated May 13, 2026 by Aidan Duffy, Threat intelligence editor, AHackaday./Methodology/Sources verified.

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