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CVE-2011-0943

Estado: ModificadaAlta (7.8)—

Cisco IOS XR 3.8.3, 3.8.4, and 3.9.1 allows remote attackers to cause a denial of service (NetIO process restart or device reload) via a crafted IPv4 packet, aka Bug ID CSCth44147.

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 XR

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2011-0943",
  "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": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2011-05-31T20:55:01.843",
  "references": [
    {
      "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080b7f18e.shtml",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080b7f18e.shtml",
      "tags": [
        "Vendor Advisory"
      ],
      "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": "Cisco IOS XR 3.8.3, 3.8.4, and 3.9.1 allows remote attackers to cause a denial of service (NetIO process restart or device reload) via a crafted IPv4 packet, aka Bug ID CSCth44147."
    },
    {
      "lang": "es",
      "value": "Cisco IOS XR v3.8.3, v3.8.4 y v3.9.1 permite a atacantes remotos provocar una denegación de servicio (reinicio del proceso NetIO o recarga del dispositivo) a través de un paquete IPv4 manipulado, también conocido como error ID CSCth44147."
    }
  ],
  "lastModified": "2026-06-16T23:28:20.060",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios_xr:3.8.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "79164FAE-AE31-4DA2-B4C2-7879268BA29E"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xr:3.8.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9B9A223A-7A0A-4E31-B8A1-C809373A799D"
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xr:3.9.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "10596213-9D2B-48A3-A733-744D41E90419"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}