msrc_cve-2025-55330
Vulnerability from csaf_microsoft
Published
2025-10-14 07:00
Modified
2025-10-14 07:00
Summary
Windows BitLocker Security Feature Bypass Vulnerability

Notes

Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Customer Action
Required. The vulnerability documented by this CVE requires customer action to resolve.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "\u003ca href=\"https://x.com/alon_leviev\"\u003eAlon Leviev\u003c/a\u003e with Microsoft (STORM)"
        ]
      },
      {
        "names": [
          "\u003ca href=\"https://x.com/alon_leviev\"\u003eAlon Leviev\u003c/a\u003e with Microsoft (STORM)"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
        "category": "general",
        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2025-55330 Windows BitLocker Security Feature Bypass Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55330"
      },
      {
        "category": "self",
        "summary": "CVE-2025-55330 Windows BitLocker Security Feature Bypass Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-55330.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Exploitability Index",
        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Windows BitLocker Security Feature Bypass Vulnerability",
    "tracking": {
      "current_release_date": "2025-10-14T07:00:00.000Z",
      "generator": {
        "date": "2025-10-15T20:59:14.912Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2025-55330",
      "initial_release_date": "2025-10-14T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-10-14T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.26200.6899",
            "product": {
              "name": "Windows 11 Version 25H2 for x64-based Systems \u003c10.0.26200.6899",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.26200.6899",
            "product": {
              "name": "Windows 11 Version 25H2 for x64-based Systems 10.0.26200.6899",
              "product_id": "20438"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 25H2 for x64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.26200.6899",
            "product": {
              "name": "Windows 11 Version 25H2 for ARM64-based Systems \u003c10.0.26200.6899",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.26200.6899",
            "product": {
              "name": "Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.6899",
              "product_id": "20437"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 25H2 for ARM64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.22621.6060",
            "product": {
              "name": "Windows 11 Version 22H2 for ARM64-based Systems \u003c10.0.22621.6060",
              "product_id": "11"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22621.6060",
            "product": {
              "name": "Windows 11 Version 22H2 for ARM64-based Systems 10.0.22621.6060",
              "product_id": "12085"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 22H2 for ARM64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.22621.6060",
            "product": {
              "name": "Windows 11 Version 22H2 for x64-based Systems \u003c10.0.22621.6060",
              "product_id": "10"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22621.6060",
            "product": {
              "name": "Windows 11 Version 22H2 for x64-based Systems 10.0.22621.6060",
              "product_id": "12086"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 22H2 for x64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.26100.6899",
            "product": {
              "name": "Windows Server 2025 (Server Core installation) \u003c10.0.26100.6899",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.26100.6899",
            "product": {
              "name": "Windows Server 2025 (Server Core installation) 10.0.26100.6899",
              "product_id": "12437"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2025 (Server Core installation)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.22631.6060",
            "product": {
              "name": "Windows 11 Version 23H2 for ARM64-based Systems \u003c10.0.22631.6060",
              "product_id": "9"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22631.6060",
            "product": {
              "name": "Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.6060",
              "product_id": "12242"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 23H2 for ARM64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.22631.6060",
            "product": {
              "name": "Windows 11 Version 23H2 for x64-based Systems \u003c10.0.22631.6060",
              "product_id": "8"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22631.6060",
            "product": {
              "name": "Windows 11 Version 23H2 for x64-based Systems 10.0.22631.6060",
              "product_id": "12243"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 23H2 for x64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.25398.1913",
            "product": {
              "name": "Windows Server 2022, 23H2 Edition (Server Core installation) \u003c10.0.25398.1913",
              "product_id": "7"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.25398.1913",
            "product": {
              "name": "Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1913",
              "product_id": "12244"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2022, 23H2 Edition (Server Core installation)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.26100.6899",
            "product": {
              "name": "Windows 11 Version 24H2 for ARM64-based Systems \u003c10.0.26100.6899",
              "product_id": "6"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.26100.6899",
            "product": {
              "name": "Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.6899",
              "product_id": "12389"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 24H2 for ARM64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.26100.6899",
            "product": {
              "name": "Windows 11 Version 24H2 for x64-based Systems \u003c10.0.26100.6899",
              "product_id": "5"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.26100.6899",
            "product": {
              "name": "Windows 11 Version 24H2 for x64-based Systems 10.0.26100.6899",
              "product_id": "12390"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 24H2 for x64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.26100.6899",
            "product": {
              "name": "Windows Server 2025 \u003c10.0.26100.6899",
              "product_id": "4"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.26100.6899",
            "product": {
              "name": "Windows Server 2025 10.0.26100.6899",
              "product_id": "12436"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2025"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-55330",
      "cwe": {
        "id": "CWE-841",
        "name": "Improper Enforcement of Behavioral Workflow"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "A successful attacker could bypass the BitLocker Device Encryption feature on the system storage device. An attacker with physical access to the target could exploit this vulnerability to gain access to encrypted data.",
          "title": "What kind of security feature could be bypassed by successfully exploiting this vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
          "12085",
          "12086",
          "12242",
          "12243",
          "12244",
          "12389",
          "12390",
          "12436",
          "12437",
          "20437",
          "20438"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-55330 Windows BitLocker Security Feature Bypass Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55330"
        },
        {
          "category": "self",
          "summary": "CVE-2025-55330 Windows BitLocker Security Feature Bypass Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-55330.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-10-14T07:00:00.000Z",
          "details": "10.0.26200.6899:Security Update:https://support.microsoft.com/help/5066835",
          "product_ids": [
            "1",
            "2"
          ],
          "url": "https://support.microsoft.com/help/5066835"
        },
        {
          "category": "vendor_fix",
          "date": "2025-10-14T07:00:00.000Z",
          "details": "10.0.22621.6060:Security Update:https://support.microsoft.com/help/5066793",
          "product_ids": [
            "11",
            "10"
          ],
          "url": "https://support.microsoft.com/help/5066793"
        },
        {
          "category": "vendor_fix",
          "date": "2025-10-14T07:00:00.000Z",
          "details": "10.0.26100.6899:Security Update:https://support.microsoft.com/help/5066835",
          "product_ids": [
            "3",
            "6",
            "5",
            "4"
          ],
          "url": "https://support.microsoft.com/help/5066835"
        },
        {
          "category": "vendor_fix",
          "date": "2025-10-14T07:00:00.000Z",
          "details": "10.0.22631.6060:Security Update:https://support.microsoft.com/help/5066793",
          "product_ids": [
            "9",
            "8"
          ],
          "url": "https://support.microsoft.com/help/5066793"
        },
        {
          "category": "vendor_fix",
          "date": "2025-10-14T07:00:00.000Z",
          "details": "10.0.25398.1913:Security Update:https://support.microsoft.com/help/5066780",
          "product_ids": [
            "7"
          ],
          "url": "https://support.microsoft.com/help/5066780"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 5.3,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Security Feature Bypass"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Windows BitLocker Security Feature Bypass Vulnerability"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.