CVE-2013-5710

Estado: ModificadaBaja (3.7)—

The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance.

CVSS

Versión: 2.0
Vector: AV:L/AC:H/Au:N/C:P/I:P/A:P
Puntuación base: 3.7

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.29%
Percentil entre todas las CVEs puntuadas: 20
Fecha de la puntuación: 7/10/2026

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)

Freebsd — Freebsd

CWE

CWE-264

Referencias

JSON original (NVD)

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{
  "id": "CVE-2013-5710",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.7,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 1.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2013-09-23T20:55:07.433",
  "references": [
    {
      "url": "http://secunia.com/advisories/54861",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://svnweb.freebsd.org/base?view=revision&revision=255442",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2013/dsa-2769",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.freebsd.org/security/advisories/FreeBSD-SA-13:13.nullfs.asc",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1029015",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/54861",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://svnweb.freebsd.org/base?view=revision&revision=255442",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2013/dsa-2769",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.freebsd.org/security/advisories/FreeBSD-SA-13:13.nullfs.asc",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1029015",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The nullfs implementation in sys/fs/nullfs/null_vnops.c in the kernel in FreeBSD 8.3 through 9.2 allows local users with certain permissions to bypass access restrictions via a hardlink in a nullfs instance to a file in a different instance."
    },
    {
      "lang": "es",
      "value": "La implementación de nullfs en el archivo sys/fs/nullfs/null_vnops.c en el kernel en FreeBSD versiones 8.3 hasta 9.2, permite a los usuarios locales con ciertos permisos omitir las restricciones de acceso mediante un enlace físico en una instancia de nullfs hacia un archivo en una instancia diferente."
    }
  ],
  "lastModified": "2026-06-16T23:59:17.500",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3CF1F9EF-01AF-4708-AE02-765360AF3D66"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:8.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "30C501A1-FE2D-41E7-A5DB-C61D8701B9B4"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:8.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5DB4C0E8-8E50-44B1-BE0C-4C261D9E9730"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E6BD5BFF-260A-4A9E-B0AA-C8B8386B154E"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D78E559A-430D-4D50-8A83-58A37D393471"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:9.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2C560926-7789-4052-819D-C36C43C9C61E"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}