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CVE-2020-1939

Estado: ModificadaCrítica (9.8)—

The Apache NuttX (Incubating) project provides an optional separate "apps" repository which contains various optional components and example programs. One of these, ftpd, had a NULL pointer dereference bug. The NuttX RTOS itself is not affected. Users of the optional apps repository are affected only if they have enabled ftpd. Versions 6.15 to 8.2 are affected.

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)

Apache — Nuttx

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-1939",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "HIGH",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Apache NuttX (incubating)",
          "versions": [
            {
              "status": "affected",
              "version": "Apache NuttX (incubating) 6.15 to 8.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-05-12T15:15:12.533",
  "references": [
    {
      "url": "https://lists.apache.org/thread.html/re3adc65ff4d8d9c34e5bccba3941a28cbb0a47191c150df2727e101d%40%3Cdev.nuttx.apache.org%3E",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "https://lists.apache.org/thread.html/re3adc65ff4d8d9c34e5bccba3941a28cbb0a47191c150df2727e101d%40%3Cdev.nuttx.apache.org%3E",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Apache NuttX (Incubating) project provides an optional separate \"apps\" repository which contains various optional components and example programs. One of these, ftpd, had a NULL pointer dereference bug. The NuttX RTOS itself is not affected. Users of the optional apps repository are affected only if they have enabled ftpd. Versions 6.15 to 8.2 are affected."
    },
    {
      "lang": "es",
      "value": "El proyecto Apache NuttX (Incubating) proporciona un repositorio separado opcional de \"apps\" que contiene varios componentes opcionales y programas ejemplo. Uno de ellos, ftpd, presentaba un bug de desreferencia de puntero NULL. El NuttX RTOS no está afectado. Los usuarios del repositorio opcional de \"apps\" sólo están afectados si han habilitado el ftpd. Las versiones 6.15 a 8.2 están afectadas."
    }
  ],
  "lastModified": "2026-06-17T03:02:40.523",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:nuttx:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "575A5C69-8299-4DB5-B0D5-29080FE5898E",
              "versionEndIncluding": "8.2",
              "versionStartIncluding": "6.15"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "security@apache.org"
}