CVE-2025-41702
Estado: AplazadaCrítica (9.8)—
The JWT secret key is embedded in the egOS WebGUI backend and is readable to the default user. An unauthenticated remote attacker can generate valid HS256 tokens and bypass authentication/authorization due to the use of hard-coded cryptographic key.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.52%
- Percentil entre todas las CVEs puntuadas: 42
- Fecha de la puntuación: 6/10/2026
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).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1078.001Default Accountsstealth · persistence · privilege escalation · initial access90 % - Impacto secundario
T1005Data from Local Systemcollection70 %
Aplicación web expuesta (egOS WebGUI) con clave JWT hardcodeada en código fuente. Atacante remoto sin autenticación genera tokens HS256 válidos (T1078.001: validación de credenciales falsa) para ejecución de comandos o lectura de datos en el servidor.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-321
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-41702",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-41702",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2025-08-26T19:37:50.695357Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "info@cert.vde.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "info@cert.vde.com",
"affectedData": [
{
"vendor": "Welotec",
"product": "EG400Mk2-D11001-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG400Mk2-D11101-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG503W",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG503L",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG503W_4GB",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG503L_4GB",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG503L-G",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG500Mk2-A11101-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG500Mk2-A11001-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG500Mk2-B11101-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG500Mk2-B11001-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG500Mk2-C11101-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG500Mk2-C11001-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG500Mk2-A12011-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG500Mk2-A11001-000201",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG500Mk2-A21101-000101",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG602W",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG602L",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG603W Mk2",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG603L Mk2",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG802W",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG804W",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG802W_i7_512GB_DinRail",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG802W_i7_512GB_w/o DinRail",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Welotec",
"product": "EG804W Pro",
"versions": [
{
"status": "affected",
"version": "0.0.0",
"lessThan": "<v1.7.7",
"versionType": "semver"
},
{
"status": "affected",
"version": "v1.8.0",
"lessThan": "v1.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2025-08-26T06:15:32.923",
"references": [
{
"url": "https://certvde.com/de/advisories/VDE-2025-076",
"source": "info@cert.vde.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "info@cert.vde.com",
"description": [
{
"lang": "en",
"value": "CWE-321"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The JWT secret key is embedded in the egOS WebGUI backend and is readable to the default user. An unauthenticated remote attacker can generate valid HS256 tokens and bypass authentication/authorization due to the use of hard-coded cryptographic key."
},
{
"lang": "es",
"value": "La clave secreta JWT está integrada en el backend de egOS WebGUI y es legible para el usuario predeterminado. Un atacante remoto no autenticado puede generar tokens HS256 válidos y eludir la autenticación/autorización mediante el uso de una clave criptográfica codificada."
}
],
"lastModified": "2026-06-17T09:23:00.160",
"sourceIdentifier": "info@cert.vde.com"
}