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CVE-2026-27913

Full vulnerability record from the local CVENow database.

Description

Improper input validation in Windows BitLocker allows an unauthorized attacker to bypass a security feature locally.

Severity
HIGH
CVSS score
7.7 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-14 18:16:58.860000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
{
  "id": "CVE-2026-27913",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-14T18:16:58.860",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper input validation in Windows BitLocker allows an unauthorized attacker to bypass a security feature locally."
    },
    {
      "lang": "es",
      "value": "Validación de entrada incorrecta en Windows BitLocker permite a un atacante no autorizado eludir una característica de seguridad localmente."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2012",
          "platforms": [
            "x64-based Systems"
          ],
          "versions": [
            {
              "version": "6.2.9200.0",
              "lessThan": "6.2.9200.26026",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2012 (Server Core installation)",
          "platforms": [
            "x64-based Systems"
          ],
          "versions": [
            {
              "version": "6.2.9200.0",
              "lessThan": "6.2.9200.26026",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2012 R2",
          "platforms": [
            "x64-based Systems"
          ],
          "versions": [
            {
              "version": "6.3.9600.0",
              "lessThan": "6.3.9600.23132",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2012 R2 (Server Core installation)",
          "platforms": [
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          ],
          "versions": [
            {
              "version": "6.3.9600.0",
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              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2016",
          "platforms": [
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          ],
          "versions": [
            {
              "version": "10.0.14393.0",
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              "versionType": "custom",
              "status": "affected"
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          "vendor": "Microsoft",
          "product": "Windows Server 2016 (Server Core installation)",
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          ],
          "versions": [
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              "version": "10.0.14393.0",
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              "status": "affected"
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          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2019",
          "platforms": [
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          ],
          "versions": [
            {
              "version": "10.0.17763.0",
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              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2019 (Server Core installation)",
          "platforms": [
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          ],
          "versions": [
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              "version": "10.0.17763.0",
              "lessThan": "10.0.17763.8644",
              "versionType": "custom",
              "status": "affected"
            }
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        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2022",
          "platforms": [
            "x64-based Systems"
          ],
          "versions": [
            {
              "version": "10.0.20348.0",
              "lessThan": "10.0.20348.5020",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2022, 23H2 Edition (Server Core installation)",
          "platforms": [
            "x64-based Systems"
          ],
          "versions": [
            {
              "version": "10.0.25398.0",
              "lessThan": "10.0.25398.2274",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-15T03:57:23.079729Z",
          "id": "CVE-2026-27913",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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              "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"
            },
            {
              "vulnerable": true,
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              "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "10.0.14393.9060",
              "matchCriteriaId": "982DB0CA-5196-4E42-B2F7-994BE8179715"
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            },
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  ],
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27913",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}