FKIE_CVE-2025-6950

Vulnerability from fkie_nvd - Published: 2025-10-17 04:16 - Updated: 2026-10-18 21:10
Severity
9.9 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H
Summary
An Use of Hard-coded Credentials vulnerability has been identified in Moxa’s network security appliances and routers. The system employs a hard-coded secret key to sign JSON Web Tokens (JWT) used for authentication. This insecure implementation allows an unauthenticated attacker to forge valid tokens, thereby bypassing authentication controls and impersonating any user. Exploitation of this vulnerability can result in complete system compromise, enabling unauthorized access, data theft, and full administrative control over the affected device. While successful exploitation can severely impact the confidentiality, integrity, and availability of the affected device itself, there is no loss of confidentiality or integrity within any subsequent systems.
References
psirt@moxa.comhttps://www.moxa.com/en/support/product-support/security-advisory/mpsa-258121-cve-2025-6892,-cve-2025-6893,-cve-2025-6894,-cve-2025-6949,-cve-2025-6950-multiple-vulnerabilities-in-netwo
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "EDR-G9010 Series",
          "vendor": "Moxa",
          "versions": [
            {
              "lessThanOrEqual": "3.14",
              "status": "affected",
              "version": "1.0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.21",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "EDR-8010 Series",
          "vendor": "Moxa",
          "versions": [
            {
              "lessThanOrEqual": "3.17",
              "status": "affected",
              "version": "1.0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.21",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "EDF-G1002-BP Series",
          "vendor": "Moxa",
          "versions": [
            {
              "lessThanOrEqual": "3.17",
              "status": "affected",
              "version": "1.0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.21",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "TN-4900 Series",
          "vendor": "Moxa",
          "versions": [
            {
              "lessThanOrEqual": "3.14",
              "status": "affected",
              "version": "1.0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.21",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "NAT-102 Series",
          "vendor": "Moxa",
          "versions": [
            {
              "lessThanOrEqual": "3.17",
              "status": "affected",
              "version": "1.0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.21",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "NAT-108 Series",
          "vendor": "Moxa",
          "versions": [
            {
              "lessThanOrEqual": "3.16",
              "status": "affected",
              "version": "1.0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.21",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "OnCell G4302-LTE4 Series",
          "vendor": "Moxa",
          "versions": [
            {
              "lessThanOrEqual": "3.13",
              "status": "affected",
              "version": "1.0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "3.21.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "psirt@moxa.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An Use of Hard-coded Credentials vulnerability has been identified in Moxa\u2019s network security appliances and routers. The system employs a hard-coded secret key to sign JSON Web Tokens (JWT) used for authentication. This insecure implementation allows an unauthenticated attacker to forge valid tokens, thereby bypassing authentication controls and impersonating any user. Exploitation of this vulnerability can result in complete system compromise, enabling unauthorized access, data theft, and full administrative control over the affected device. While successful exploitation can severely impact the confidentiality, integrity, and availability of the affected device itself, there is no loss of confidentiality or integrity within any subsequent systems."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Uso de Credenciales Programadas ha sido identificada en los dispositivos de seguridad de red y routers de Moxa. El sistema emplea una clave secreta programada para firmar JSON Web Tokens (JWT) utilizados para autenticaci\u00f3n. Esta implementaci\u00f3n insegura permite a un atacante no autenticado forjar tokens v\u00e1lidos, eludiendo as\u00ed los controles de autenticaci\u00f3n e suplantando a cualquier usuario. La explotaci\u00f3n de esta vulnerabilidad puede resultar en un compromiso completo del sistema, permitiendo el acceso no autorizado, el robo de datos y el control administrativo total sobre el dispositivo afectado. Si bien la explotaci\u00f3n exitosa puede impactar gravemente la confidencialidad, integridad y disponibilidad del propio dispositivo afectado, no hay p\u00e9rdida de confidencialidad o integridad dentro de ning\u00fan sistema subsiguiente."
    }
  ],
  "id": "CVE-2025-6950",
  "lastModified": "2026-10-18T21:10:00.120",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.9,
          "baseSeverity": "CRITICAL",
          "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": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H/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": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "psirt@moxa.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-6950",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-17T14:26:30.676617Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-10-17T04:16:14.893",
  "references": [
    {
      "source": "psirt@moxa.com",
      "url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-258121-cve-2025-6892,-cve-2025-6893,-cve-2025-6894,-cve-2025-6949,-cve-2025-6950-multiple-vulnerabilities-in-netwo"
    }
  ],
  "sourceIdentifier": "psirt@moxa.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
      ],
      "source": "psirt@moxa.com",
      "type": "Secondary"
    }
  ]
}



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