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NVD
6.8 MediumCWE-77
CVE-2026-45585

Microsoft Windows 11 Version 24H2 vulnerability

MicrosoftWindows 11 Version 24H2

Status
  • Not in CISA KEV
  • Vendor fix available
Exploit probabilityEPSSchecked 24 Oct
0.5%probability of exploitation in the next 30 days

Higher than 41% of scored CVEs

SeverityCVSS
6.8Medium

Description NVD

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 mitigations? Implementing these mitigations will not impact service availability or management operations. Do customers need to revert the changes made to mitigate the vulnerability once the security update to protect against this vulnerability is available? No. The security update will maintain the mitigation's behavior once the security update is installed. I am using TPM+PIN, am I at risk of this

Coverage 3 articles · 3 outlets

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CVE-2026-45585 coverage
Published (UTC)OutletHeadline
Wed 20 May · 09:50 UTCThe Hacker NewsMicrosoft fixes BitLocker bypass YellowKey CVE-2026-45585
Wed 20 May · 15:31 UTCSecurity AffairsMicrosoft flags BitLocker flaw CVE-2026-45585, urges mitigations
Wed 20 May · 16:10 UTCSecurityWeekMicrosoft Rolls Out Mitigations for ‘YellowKey’ BitLocker Bypass
First in our coverage: The Hacker News, 20 MayRSS feed
  1. Microsoft Rolls Out Mitigations for ‘YellowKey’ BitLocker BypassSecurityWeek
  2. Microsoft flags BitLocker flaw CVE-2026-45585, urges mitigationsSecurity Affairs
  3. Microsoft fixes BitLocker bypass YellowKey CVE-2026-45585The Hacker News · first in our coverage

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