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CVE-2016-1478

Estado: ModificadaAlta (7.5)—

Cisco IOS 15.5(3)S3, 15.6(1)S2, 15.6(2)S1 y 15.6(2)T1 no pone en cola adecuadamente paquetes NTP inválidos, lo que facilita a atacantes remotos provocar una denegación de servicio (interfaz de cuña) mandando muchos paquetes NTP manipulados, también conocido como Bug ID CSCva35619.

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)

Cisco — IOS

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-1478",
  "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
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-08-08T00:59:09.203",
  "references": [
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160804-wedge",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/92317",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1036541",
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160804-wedge",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/92317",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1036541",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cisco IOS 15.5(3)S3, 15.6(1)S2, 15.6(2)S1, and 15.6(2)T1 does not properly dequeue invalid NTP packets, which allows remote attackers to cause a denial of service (interface wedge) by sending many crafted NTP packets, aka Bug ID CSCva35619."
    },
    {
      "lang": "es",
      "value": "Cisco IOS 15.5(3)S3, 15.6(1)S2, 15.6(2)S1 y 15.6(2)T1 no pone en cola adecuadamente paquetes NTP inválidos, lo que facilita a atacantes remotos provocar una denegación de servicio (interfaz de cuña) mandando muchos paquetes NTP manipulados, también conocido como Bug ID CSCva35619."
    }
  ],
  "lastModified": "2026-06-17T00:42:02.783",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.5\\(3\\)s3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5E246B9E-F93F-4BB2-9BA4-438FCC4A711B"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.6\\(1\\)s2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E7CBC8C7-E3B2-4659-9B47-C0F16817F46A"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.6\\(2\\)s1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B843CEE5-4D53-414D-95C7-4BA515818E87"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.6\\(2\\)t1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5BBF8B70-DFBE-4F6E-83F0-171F03E97606"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}