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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-45585

CVE-2026-45585: 1 tracked advisory record across MS Server. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

MS Server

1 advisory
  • Advisory severityMedium6.8

    Medium [CVE-2026-45585] Windows BitLocker Security Feature Bypass Vulnerability

    CVE-2026-45585Source published Source updated

    Microsoft is aware of a security feature bypass vulnerability in Windows publicly referred to as "YellowKey". The proof of concept for this vulnerability has been made public violating coordinated vulnerability best practices. We are issuing this CVE to provide mitigation guidance that can be implemented to protect against this vulnerability until the security update is made available. Mitigation FAQs Should I leverage the temporary mitigation? Microsoft recommends that you consider implementing these mitigations if you are concerned your devices and data are at risk of being compromised or stolen. For example, if your organization’s employees take their work devices home or on business travel. What impact to service availability/management could be caused by implementing the…

    Affected products in this advisory
    • Windows Server 2025 (Server Core installation)
    Source-reported affected versions
    • Windows 11 Version 24H2 10.0.26100.0 before 10.0.26100.8655
    • Windows 11 Version 25H2 10.0.26200.0 before 10.0.26200.8655
    • Windows 11 version 26H1 10.0.28000.0 before 10.0.28000.2269
    • Windows Server 2025 10.0.26100.0 before 10.0.26100.32995

    1 more entries in the full advisory.

    Source-reported fixed versions
    • 10.0.26100.8655
    • 10.0.26200.8655
    • 10.0.28000.2269
    • 10.0.26100.32995
    Mitigation guidance
    • We are issuing this CVE to provide mitigation guidance that can be implemented to protect against this vulnerability until the security update is made available.
    • Do customers need to revert the changes made to mitigate the vulnerability once the security update to protect against this vulnerability is available?
    • The security update will maintain the mitigation's behavior once the security update is installed.
    Full advisory and evidenceOpen source bulletin

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