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CVE-2006-3551

Estado: ModificadaBaja (1.2)—

NCP Secure Enterprise Client (aka VPN/PKI client) 8.30 Build 59, and possibly earlier versions, when the Link Firewall and Personal Firewall are both configured to block all inbound and outbound network traffic, allows context-dependent attackers to send inbound UDP traffic with source port 67 and destination port 68, and outbound UDP traffic with source port 68 and destination port 67.

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)

NCP Network Communications — Secure Client

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2006-3551",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 1.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:H/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "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": "2006-07-13T00:05:00.000",
  "references": [
    {
      "url": "http://lists.grok.org.uk/pipermail/full-disclosure/2006-June/047547.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/27484",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.grok.org.uk/pipermail/full-disclosure/2006-June/047547.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/27484",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NCP Secure Enterprise Client (aka VPN/PKI client) 8.30 Build 59, and possibly earlier versions, when the Link Firewall and Personal Firewall are both configured to block all inbound and outbound network traffic, allows context-dependent attackers to send inbound UDP traffic with source port 67 and destination port 68, and outbound UDP traffic with source port 68 and destination port 67."
    },
    {
      "lang": "es",
      "value": "NCP Secure Enterprise Client (también conocido como VPN/PKI client) 8.30 Build 59, y posiblemente anteriores versiones, cuando cuando el cortafuegos de enlace y el personal (Link FireWall y Personal FireWall) son ambos configurados para bloquear todo el tráfico de red de entrada y salida, permite a atacantes dependientes del contexto enviar tráfico UDP de entrada con un puerto fuente 67 y un puerto de destino 68, y tráfico de salida UDP con un puerto fuente 68 y puerto de destino 67."
    }
  ],
  "lastModified": "2026-06-16T22:27:17.603",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ncp_network_communications:secure_client:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CD90B7C7-3FBF-49A7-8116-EAD65C8965B8",
              "versionEndIncluding": "8.30_build_59"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}