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CVE-2018-7788

Estado: ModificadaMedia (6.5)—

A CWE-255 Credentials Management vulnerability exists in Modicon Quantum with firmware versions prior to V2.40. which could cause a Denial Of Service when using a Telnet connection.

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)

Schneider-electric — Modicon Quantum Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-7788",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
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        "userInteractionRequired": false
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
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  },
  "affected": [
    {
      "source": "cybersecurity@se.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Modicon Quantum with firmware versions prior to V2.40.",
          "versions": [
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              "status": "affected",
              "version": "Modicon Quantum with firmware versions prior to V2.40."
            }
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  "published": "2019-05-22T20:29:00.947",
  "references": [
    {
      "url": "https://www.schneider-electric.com/en/download/document/SEVD-2019-134-08/",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cybersecurity@se.com"
    },
    {
      "url": "https://www.schneider-electric.com/en/download/document/SEVD-2019-134-08/",
      "tags": [
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        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
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      "source": "cybersecurity@se.com",
      "description": [
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          "value": "CWE-255"
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "value": "NVD-CWE-noinfo"
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  "descriptions": [
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      "lang": "en",
      "value": "A CWE-255 Credentials Management vulnerability exists in Modicon Quantum with firmware versions prior to V2.40. which could cause a Denial Of Service when using a Telnet connection."
    },
    {
      "lang": "es",
      "value": "CWE-255: Existe una vulnerabilidad de Administración de Credenciales en Modicon Quantum con versiones de firmware anteriores a la V2.40, que podría generar una Denegación de Servicio al utilizar una conexión Telnet."
    }
  ],
  "lastModified": "2026-06-17T02:03:43.577",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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  "sourceIdentifier": "cybersecurity@se.com"
}