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Windows BitLocker 0-Day Vulnerability Enables Access to Encrypted Drives

📅 14 May 2026 at 03:01 UTC📰 Cyber Security NewsView original source ↗
Windows BitLocker 0-Day Vulnerability Enables Access to Encrypted Drives

Two new unpatched Windows BitLocker zero-day vulnerabilities significantly compromise Microsoft’s ecosystem. The exploits include a critical BitLocker encryption bypass called YellowKey and a privilege escalation flaw named GreenPlasma. The most critical of these flaws, dubbed “YellowKey,” enables a total bypass of BitLocker encryption, granting attackers completely unrestricted access to locked system drives. Following Microsoft’s recent […] The post Windows BitLocker 0-Day Vulnerability Enables Access to Encrypted Drives appeared first on Cyber Security News.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Two unpatched Windows BitLocker zero-day vulnerabilities, YellowKey and GreenPlasma, compromise Microsoft's ecosystem by enabling a critical encryption bypass and privilege escalation flaw, respectively.

⚙️Technical Details
Affected Systems
Windows systems with BitLocker encryption
Attack Vectors
YellowKey: total bypass of BitLocker encryption; GreenPlasma: privilege escalation flaw
💥Impact Assessment
Severity: critical
Who Is at Risk
Users with Windows systems and BitLocker encryption enabled
🛡️Recommended Actions
1Apply the latest security patches to affected systems immediately
2Disable BitLocker encryption on non-essential drives until a patch is available
3Monitor system logs for suspicious activity related to YellowKey and GreenPlasma
📦Affected Products
Windows systems with BitLocker encryption

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