{
  "cveId": "CVE-2026-45585",
  "url": "https://patchblox.com/security/cve/CVE-2026-45585",
  "summary": "CVE-2026-45585 is fixed in 5 products on 1 platform, first by KB5094126, released June 9, 2026. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.",
  "title": "Windows BitLocker Security Feature Bypass Vulnerability",
  "description": "\u003Cp\u003EMicrosoft is aware of a security feature bypass vulnerability in Windows publicly referred to as \u0022YellowKey\u0022. The proof of concept for this vulnerability has been made public violating coordinated vulnerability best practices.\u003C/p\u003E\n\u003Cp\u003EWe are issuing this CVE to provide mitigation guidance that can be implemented to protect against this vulnerability until the security update is made available.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EMitigation FAQs\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EShould I leverage the temporary mitigation?\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EMicrosoft 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\u2019s employees take their work devices home or on business travel.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat impact to service availability/management could be caused by implementing the mitigations?\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EImplementing these mitigations will not impact service availability or management operations.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EDo customers need to revert the changes made to mitigate the vulnerability once the security update to protect against this vulnerability is available?\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003ENo. The security update will maintain the mitigation\u0027s behavior once the security update is installed.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EI am using TPM\u002BPIN, am I at risk of this vulnerability being exploited\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003ENo, if you are using TPM\u002BPIN the vulnerability is not exploitable.\u003C/p\u003E",
  "published": "2026-05-21T07:00:00Z",
  "severity": "Important",
  "cvss": 6.8,
  "cwe": "Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
  "epss": 0.01891,
  "epssPercentile": 0.79696,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": true,
  "exploitabilityAssessment": "Exploitation More Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45585",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 24H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5094126",
      "url": "https://patchblox.com/security/fix/microsoft/kb5094126",
      "released": "2026-06-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 Version 25H2 for x64-based Systems",
      "fixedVersion": "",
      "fix": "KB5094126",
      "url": "https://patchblox.com/security/fix/microsoft/kb5094126",
      "released": "2026-06-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows 11 version 26H1 for x64-based Systems",
      "fixedVersion": "28000.2269",
      "fix": "KB5095051",
      "url": "https://patchblox.com/security/fix/microsoft/kb5095051",
      "released": "2026-06-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025",
      "fixedVersion": "26100.32995",
      "fix": "KB5094125",
      "url": "https://patchblox.com/security/fix/microsoft/kb5094125",
      "released": "2026-06-09T00:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Windows Server 2025 (Server Core installation)",
      "fixedVersion": "26100.32995",
      "fix": "KB5094125",
      "url": "https://patchblox.com/security/fix/microsoft/kb5094125",
      "released": "2026-06-09T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}