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CVE-2006-4776

Estado: ModificadaAlta (7.5)—
Gravedad7.5Alta · CVSS 2.0
Probabilidad de explotación7.96 %mayor que el 95 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

Desbordamiento de búfer basado en montón en la VLAN Trunking Protocol (VTP) característico de Cisco IOS 12.1(19), permite a un atacante remoto ejecutar código de su elección a través de un nombre largo de VLAN en un anuncio resumen de VTP tipo 2.

CVSS

Puntuación base
7.5
Versión
2.0
Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
7.96 %
Percentil entre todas las CVEs puntuadas
95
Fecha de la puntuación
22/10/2026

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)

Cisco — IOS

CWE

Referencias

Mostrar las 24 referencias

JSON original (NVD)

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{
  "id": "CVE-2006-4776",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": true,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2006-09-14T00:07:00.000",
  "references": [
    {
      "url": "http://secunia.com/advisories/21896",
      "tags": [
        "Vendor Advisory"
      ],
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    },
    {
      "url": "http://securitytracker.com/id?1016843",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.cisco.com/warp/public/707/cisco-sr-20060913-vtp.shtml",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/542108",
      "tags": [
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      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.osvdb.org/28777",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.phenoelit.de/stuff/CiscoVTP.txt",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445896/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445938/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/19998",
      "source": "cve@mitre.org"
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    {
      "url": "http://www.vupen.com/english/advisories/2006/3600",
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      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28927",
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    },
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    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/542108",
      "tags": [
        "US Government Resource"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.osvdb.org/28777",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.phenoelit.de/stuff/CiscoVTP.txt",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445896/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/445938/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/19998",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2006/3600",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2006/3601",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28927",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) allows remote attackers to execute arbitrary code via a long VLAN name in a VTP type 2 summary advertisement."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de búfer basado en montón en la VLAN Trunking Protocol (VTP) característico de Cisco IOS 12.1(19), permite a un atacante remoto ejecutar código de su elección a través de un nombre largo de VLAN en un anuncio resumen de VTP tipo 2."
    }
  ],
  "lastModified": "2026-06-16T22:29:46.493",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.1\\(19\\):*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4944AFEF-D002-4C86-958A-4EB753399FB5"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}