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CVE-2026-21404

Estado: AnalizadaMedia (5.8)—

NAVTOR NavBox through version 4.16.1.20 contains hard-coded credentials within its Windows Communication Foundation (SOAP) implementation. If the SOAP functionality is enabled, a local attacker can extract credentials to bypass the intended transfer workflow. Successful authentication against the SOAP interface grants access to privileged WCF methods, enabling an attacker to write or overwrite files within application-defined paths.

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)

Navtor — Navbox Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-21404",
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        "ssvcData": {
          "id": "CVE-2026-21404",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-06-05T18:25:51.749669Z"
        }
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        "source": "ics-cert@hq.dhs.gov",
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          "baseScore": 6.3,
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 5.2,
        "exploitabilityScore": 1
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "ics-cert@hq.dhs.gov",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 5.8,
          "Automatable": "NOT_DEFINED",
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
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          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
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  },
  "affected": [
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      "source": "ics-cert@hq.dhs.gov",
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        {
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          "product": "NavBox",
          "versions": [
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              "version": "0",
              "versionType": "custom",
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  "published": "2026-06-04T20:16:57.083",
  "references": [
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      "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-155-01.json",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "ics-cert@hq.dhs.gov"
    },
    {
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-155-01",
      "tags": [
        "Mitigation",
        "US Government Resource"
      ],
      "source": "ics-cert@hq.dhs.gov"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "ics-cert@hq.dhs.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NAVTOR NavBox through version 4.16.1.20 contains hard-coded credentials within its Windows Communication Foundation (SOAP) implementation. If the SOAP functionality is enabled, a local attacker can extract credentials to bypass the intended transfer workflow. Successful authentication against the SOAP interface grants access to privileged WCF methods, enabling an attacker to write or overwrite files within application-defined paths."
    },
    {
      "lang": "es",
      "value": "NAVTOR NavBox hasta la versión 4.16.1.20 contiene credenciales codificadas de forma rígida dentro de su implementación de Windows Communication Foundation (SOAP). Si la funcionalidad SOAP está habilitada, un atacante local puede extraer credenciales para eludir el flujo de trabajo de transferencia previsto. La autenticación exitosa contra la interfaz SOAP otorga acceso a métodos WCF privilegiados, permitiendo a un atacante escribir o sobrescribir archivos dentro de rutas definidas por la aplicación."
    }
  ],
  "lastModified": "2026-07-22T20:10:00.127",
  "configurations": [
    {
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        {
          "negate": false,
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              "versionEndIncluding": "4.16.1.20"
            }
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          ],
          "operator": "OR"
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      "operator": "AND"
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  "sourceIdentifier": "ics-cert@hq.dhs.gov"
}