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CVE-2021-36949

Estado: ModificadaAlta (7.1)—

Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Microsoft — Azure Active Directory ConnectMicrosoft — Azure Active Directory Connect Provisioning Agent

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-36949",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:M/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      },
      {
        "type": "Secondary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Azure Active Directory Connect Provisioning Agent",
          "versions": [
            {
              "status": "affected",
              "version": "1.1.0.0",
              "lessThan": "1.1.582.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Azure Active Directory Connect 1.X.Y.Z",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0.0",
              "lessThan": "1.6.11.3",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Azure Active Directory Connect 2.0.X.Y",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.0.0",
              "lessThan": "2.0.8.0",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-08-12T18:15:10.227",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36949",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36949",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability"
    },
    {
      "lang": "es",
      "value": "Una Vulnerabilidad de Omisión de Autenticación de Microsoft Azure Active Directory Connect"
    }
  ],
  "lastModified": "2026-08-10T16:18:02.500",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:azure_active_directory_connect:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0C92E3BE-66AB-4FAF-B949-9CA32AB2DA48",
              "versionEndIncluding": "1.6.11.3",
              "versionStartIncluding": "1.3.20.0"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:azure_active_directory_connect:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "00A45694-3CEA-462A-974E-097B80164B6D",
              "versionEndIncluding": "2.0.9.0",
              "versionStartIncluding": "2.0.3.0"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:azure_active_directory_connect_provisioning_agent:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "568ACFF8-DC9B-45C8-BBED-BA6F0863A4FE",
              "versionEndExcluding": "1.1.582.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}