FKIE_CVE-2025-66596

Vulnerability from fkie_nvd - Published: 2026-02-09 05:16 - Updated: 2026-02-09 16:08
Severity ?
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Summary
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not properly validate request headers. When an attacker inserts an invalid host header, users could be redirected to malicious sites. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
References
7168b535-132a-4efe-a076-338f829b2eb9https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.\n\n\n\nThis product does not\nproperly validate request headers. When an attacker inserts an invalid host\nheader, users could be redirected to malicious sites.\n\n\n\nThe\naffected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to\nR10.04"
    },
    {
      "lang": "es",
      "value": "Se ha encontrado una vulnerabilidad en FAST/TOOLS proporcionado por Yokogawa Electric Corporation.\n\nEste producto no valida correctamente los encabezados de solicitud. Cuando un atacante inserta un encabezado de host no v\u00e1lido, los usuarios podr\u00edan ser redirigidos a sitios maliciosos.\n\nLos productos y versiones afectados son los siguientes: FAST/TOOLS (Paquetes: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 a R10.04"
    }
  ],
  "id": "CVE-2025-66596",
  "lastModified": "2026-02-09T16:08:35.290",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "LOW",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "7168b535-132a-4efe-a076-338f829b2eb9",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-09T05:16:23.950",
  "references": [
    {
      "source": "7168b535-132a-4efe-a076-338f829b2eb9",
      "url": "https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf"
    }
  ],
  "sourceIdentifier": "7168b535-132a-4efe-a076-338f829b2eb9",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ],
      "source": "7168b535-132a-4efe-a076-338f829b2eb9",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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