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CVE-2019-18261

Estado: ModificadaCrítica (9.8)—

In Omron PLC CS series, all versions, Omron PLC CJ series, all versions, and Omron PLC NJ series, all versions, the software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame, making it more susceptible to brute force attacks.

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 (3)

Omron — PLC CJ FirmwareOmron — PLC CS FirmwareOmron — PLC NJ Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2019-18261",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "ics-cert@hq.dhs.gov",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Omron PLC CJ, CS and NJ Series",
          "versions": [
            {
              "status": "affected",
              "version": "Omron PLC CS series, all versions, Omron PLC CJ series, all versions, Omron PLC NJ series, all versions"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-12-16T20:15:15.697",
  "references": [
    {
      "url": "https://www.us-cert.gov/ics/advisories/icsa-19-346-03",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "ics-cert@hq.dhs.gov"
    },
    {
      "url": "https://www.us-cert.gov/ics/advisories/icsa-19-346-03",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "ics-cert@hq.dhs.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-307"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-307"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Omron PLC CS series, all versions, Omron PLC CJ series, all versions, and Omron PLC NJ series, all versions, the software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame, making it more susceptible to brute force attacks."
    },
    {
      "lang": "es",
      "value": "En el Omron PLC CS series, todas las versiones, el Omron PLC CJ series, todas las versiones y el Omron PLC NJ series, todas las versiones, el software no implementa medidas suficientes para impedir múltiples intentos de autenticación fallidos dentro un período de tiempo corto, haciéndola más susceptible a los ataques de fuerza bruta."
    }
  ],
  "lastModified": "2026-06-17T02:24:43.143",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:omron:plc_cj_firmware:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7AF2C347-B4A7-4505-98A4-AFDCB1FCD386"
            },
            {
              "criteria": "cpe:2.3:o:omron:plc_cs_firmware:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DF9CD76C-F6E9-4E01-A039-4049B706DD92"
            },
            {
              "criteria": "cpe:2.3:o:omron:plc_nj_firmware:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DA0D87D7-A7AF-45DE-90EE-67103BA00A6B"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "ics-cert@hq.dhs.gov"
}