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CVE-2017-6633

Estado: ModificadaAlta (7.5)—

A vulnerability in the TCP throttling process of Cisco UCS C-Series Rack Servers 3.0(0.234) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient rate-limiting protection. An attacker could exploit this vulnerability by sending a high rate of TCP SYN packets to a specific TCP listening port on an affected device. An exploit could allow the attacker to cause a specific TCP listening port to stop accepting new connections, resulting in a DoS condition. Cisco Bug IDs: CSCva65544.

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 — Unified Computing System

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2017-6633",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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          "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"
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        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
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          "vendor": "n/a",
          "product": "Cisco UCS C-Series Rack Servers",
          "versions": [
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  "published": "2017-05-22T01:29:00.273",
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      "url": "http://www.securityfocus.com/bid/98525",
      "tags": [
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      "source": "psirt@cisco.com"
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      "source": "psirt@cisco.com"
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      "tags": [
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
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          "lang": "en",
          "value": "CWE-119"
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      "description": [
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  "descriptions": [
    {
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      "value": "A vulnerability in the TCP throttling process of Cisco UCS C-Series Rack Servers 3.0(0.234) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient rate-limiting protection. An attacker could exploit this vulnerability by sending a high rate of TCP SYN packets to a specific TCP listening port on an affected device. An exploit could allow the attacker to cause a specific TCP listening port to stop accepting new connections, resulting in a DoS condition. Cisco Bug IDs: CSCva65544."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad en el proceso de limitación de TCP de Cisco UCS C-Series Rack Servers 3.0 (0.234) podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. La vulnerabilidad se debe a la insuficiencia de la limitación de la protección. Un atacante podría explotar esta vulnerabilidad enviando una alta tasa de paquetes TCP SYN a un puerto de escucha TCP específico en un dispositivo afectado. Un exploit podría permitir al atacante hacer que un puerto de escucha específico de TCP dejara de aceptar nuevas conexiones, resultando en una condición DoS. ID de errores de Cisco: CSCva65544."
    }
  ],
  "lastModified": "2026-06-17T01:22:41.577",
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