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CVE-2011-2393

Estado: ModificadaAlta (7.8)—

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD, NetBSD, and possibly other BSD-based operating systems allows remote attackers to cause a denial of service (CPU consumption and device hang) by sending many Router Advertisement (RA) messages with different source addresses, a similar vulnerability to CVE-2010-4670.

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)

Freebsd — FreebsdNetbsd — Netbsd

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2011-2393",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "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": "2012-02-02T17:55:00.910",
  "references": [
    {
      "url": "http://seclists.org/fulldisclosure/2011/Apr/86",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.mh-sec.de/downloads/mh-RA_flooding_CVE-2010-multiple.txt",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2011/Apr/86",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mh-sec.de/downloads/mh-RA_flooding_CVE-2010-multiple.txt",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD, NetBSD, and possibly other BSD-based operating systems allows remote attackers to cause a denial of service (CPU consumption and device hang) by sending many Router Advertisement (RA) messages with different source addresses, a similar vulnerability to CVE-2010-4670."
    },
    {
      "lang": "es",
      "value": "La implementación del protocolo de descubrimiento de vecinos (Neighbor Discovery - ND) en la pila IPv6 en FreeBSD, NetBSD, y posiblemente, otros sistemas operativos basados ??en BSD permite a atacantes remotos provocar una denegación de servicio (consumo de CPU y bloqueo del dispositivo) mediante el envío de muchos mensajes de anuncio de enrutador (Router Advertisemente - RA) con direcciones de origen diferente. Se trata de una vulnerabilidad similar a CVE-2010-4670."
    }
  ],
  "lastModified": "2026-06-16T23:31:14.887",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D9EC02F3-3905-460D-8949-3B26394215CA"
            },
            {
              "criteria": "cpe:2.3:o:netbsd:netbsd:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B55E4B92-88E0-41F0-AFA7-046A8D34A2CA"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}