CVE-2025-6950
Full vulnerability record from the local CVENow database.
Description
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.
Severity
CRITICAL
CVSS score
9.9
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2025-10-17 04:16:14.893000
Last modified
2026-10-18 21:10:00.120000
View original CVE JSON
{
"id": "CVE-2025-6950",
"sourceIdentifier": "[email protected]",
"published": "2025-10-17T04:16:14.893",
"lastModified": "2026-10-18T21:10:00.120",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"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 autenticación. Esta implementación insegura permite a un atacante no autenticado forjar tokens válidos, eludiendo así los controles de autenticación e suplantando a cualquier usuario. La explotación 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 explotación exitosa puede impactar gravemente la confidencialidad, integridad y disponibilidad del propio dispositivo afectado, no hay pérdida de confidencialidad o integridad dentro de ningún sistema subsiguiente."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Moxa",
"product": "EDR-G9010 Series",
"defaultStatus": "unaffected",
"versions": [
{
"version": "1.0",
"lessThanOrEqual": "3.14",
"versionType": "custom",
"status": "affected"
},
{
"version": "3.21",
"versionType": "custom",
"status": "unaffected"
}
]
},
{
"vendor": "Moxa",
"product": "EDR-8010 Series",
"defaultStatus": "unaffected",
"versions": [
{
"version": "1.0",
"lessThanOrEqual": "3.17",
"versionType": "custom",
"status": "affected"
},
{
"version": "3.21",
"versionType": "custom",
"status": "unaffected"
}
]
},
{
"vendor": "Moxa",
"product": "EDF-G1002-BP Series",
"defaultStatus": "unaffected",
"versions": [
{
"version": "1.0",
"lessThanOrEqual": "3.17",
"versionType": "custom",
"status": "affected"
},
{
"version": "3.21",
"versionType": "custom",
"status": "unaffected"
}
]
},
{
"vendor": "Moxa",
"product": "TN-4900 Series",
"defaultStatus": "unaffected",
"versions": [
{
"version": "1.0",
"lessThanOrEqual": "3.14",
"versionType": "custom",
"status": "affected"
},
{
"version": "3.21",
"versionType": "custom",
"status": "unaffected"
}
]
},
{
"vendor": "Moxa",
"product": "NAT-102 Series",
"defaultStatus": "unaffected",
"versions": [
{
"version": "1.0",
"lessThanOrEqual": "3.17",
"versionType": "custom",
"status": "affected"
},
{
"version": "3.21",
"versionType": "custom",
"status": "unaffected"
}
]
},
{
"vendor": "Moxa",
"product": "NAT-108 Series",
"defaultStatus": "unaffected",
"versions": [
{
"version": "1.0",
"lessThanOrEqual": "3.16",
"versionType": "custom",
"status": "affected"
},
{
"version": "3.21",
"versionType": "custom",
"status": "unaffected"
}
]
},
{
"vendor": "Moxa",
"product": "OnCell G4302-LTE4 Series",
"defaultStatus": "unaffected",
"versions": [
{
"version": "1.0",
"lessThanOrEqual": "3.13",
"versionType": "custom",
"status": "affected"
},
{
"version": "3.21.0",
"versionType": "custom",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"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",
"baseScore": 9.9,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2025-10-17T14:26:30.676617Z",
"id": "CVE-2025-6950",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-798"
}
]
}
],
"references": [
{
"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",
"source": "[email protected]"
}
]
}