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CVE-2020-7929

Estado: ModificadaMedia (6.5)—

A user authorized to perform database queries may trigger denial of service by issuing specially crafted query contain a type of regex. This issue affects MongoDB Server v3.6 versions prior to 3.6.21 and MongoDB Server v4.0 versions prior to 4.0.20.

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 (1)

Mongodb — Mongodb

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-7929",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-7929",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-01-23T18:12:01.677275Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@mongodb.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
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        "exploitabilityScore": 2.8
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      {
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        "source": "nvd@nist.gov",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
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        "exploitabilityScore": 2.8
      }
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  },
  "affected": [
    {
      "source": "cna@mongodb.com",
      "affectedData": [
        {
          "vendor": "MongoDB Inc.",
          "product": "MongoDB Server",
          "versions": [
            {
              "status": "affected",
              "version": "3.6",
              "lessThan": "3.6.21",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "4.0",
              "lessThan": "4.0.20",
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          "defaultStatus": "unaffected"
        }
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    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*"
          ],
          "vendor": "mongodb",
          "product": "mongodb",
          "versions": [
            {
              "status": "affected",
              "version": "3.6",
              "lessThan": "3.6.21",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "4.0",
              "lessThan": "4.0.20",
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            }
          ],
          "defaultStatus": "unknown"
        }
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  ],
  "published": "2021-03-01T16:15:12.747",
  "references": [
    {
      "url": "https://jira.mongodb.org/browse/SERVER-51083",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cna@mongodb.com"
    },
    {
      "url": "https://jira.mongodb.org/browse/SERVER-51083",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@mongodb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-185"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A user authorized to perform database queries may trigger denial of service by issuing specially crafted query contain a type of regex. This issue affects MongoDB Server v3.6 versions prior to 3.6.21 and MongoDB Server v4.0 versions prior to 4.0.20."
    },
    {
      "lang": "es",
      "value": "Un usuario autorizado para llevar a cabo consultas a la base de datos puede desencadenar una denegación de servicio cuando se emite una consulta especialmente diseñada que contenga un tipo de expresión regular. Este problema afecta a: MongoDB Inc. MongoDB Server versiones v3.6 anteriores a 3.6.21 y MongoDB Server versiones v4.0 anteriores a 4.0.20"
    }
  ],
  "lastModified": "2026-06-17T03:25:38.987",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*",
              "vulnerable": true,
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              "versionEndExcluding": "3.6.21",
              "versionStartIncluding": "3.6.0"
            },
            {
              "criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B61A2FF1-19F3-43A8-8163-27E4F1BC267A",
              "versionEndExcluding": "4.0.20",
              "versionStartIncluding": "4.0.0"
            }
          ],
          "operator": "OR"
        }
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    }
  ],
  "sourceIdentifier": "cna@mongodb.com"
}