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securitySecurity/THREATS/HIGH

Windows Zero-Days Expose BitLocker Bypasses And CTFMON Privilege Escalation

sourceThe Hacker News
calendar_todayMay 14, 2026
schedule1 min read
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EXECUTIVE SUMMARY

New Windows Zero-Days: BitLocker Bypass and CTFMON Privilege Escalation Uncovered

Summary

The article discusses two newly discovered zero-day vulnerabilities in Windows, involving a BitLocker bypass and a privilege escalation in the Collaborative Translation Framework (CTFMON). These vulnerabilities were disclosed by an anonymous researcher known as Chaotic Eclipse.

Key Points

  • Two zero-day vulnerabilities have been identified in Windows.
  • The vulnerabilities are named YellowKey (BitLocker bypass) and GreenPlasma (CTFMON privilege escalation).
  • The researcher behind the discovery is known by the alias Chaotic Eclipse.
  • These vulnerabilities follow previous disclosures of Microsoft Defender vulnerabilities by the same researcher.

Analysis

The discovery of these zero-day vulnerabilities highlights ongoing security challenges within Windows systems, particularly concerning BitLocker and CTFMON. The ability to bypass BitLocker could potentially lead to unauthorized data access, while privilege escalation vulnerabilities can allow attackers to gain elevated access, posing significant security risks.

Conclusion

IT professionals should prioritize monitoring for updates and patches from Microsoft regarding these vulnerabilities. Implementing additional security measures and conducting regular security audits can help mitigate potential risks associated with these zero-days.