CVE-2025-20163
Estado: AnalizadaAlta (8.7)—
A vulnerability in the SSH implementation of Cisco Nexus Dashboard Fabric Controller (NDFC) could allow an unauthenticated, remote attacker to impersonate Cisco NDFC-managed devices.
This vulnerability is due to insufficient SSH host key validation. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on SSH connections to Cisco NDFC-managed devices, which could allow an attacker to intercept this traffic. A successful exploit could allow the attacker to impersonate a managed device and capture user credentials.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
- Puntuación base: 8.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.43%
- Percentil entre todas las CVEs puntuadas: 35
- 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
T1557Adversary-in-the-Middlecredential access · collection90 % - Impacto principal
T1078Valid Accountsstealth · persistence · privilege escalation · initial access85 % - Impacto secundario
T1212Exploitation for Credential Accesscredential access80 %
Man-in-the-middle en SSH (CWE-322, validación de host insuficiente) para interceptar credenciales de dispositivos gestionados. Acceso no autenticado en red, CVSS AV:N.
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)
CWE
- CWE-322
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-20163",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-20163",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2025-06-05T03:55:24.665920Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 8.7,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.8,
"exploitabilityScore": 2.2
}
]
},
"affected": [
{
"source": "psirt@cisco.com",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco Data Center Network Manager",
"versions": [
{
"status": "affected",
"version": "11.2(1)"
},
{
"status": "affected",
"version": "7.0(2)"
},
{
"status": "affected",
"version": "10.3(2)IPFM"
},
{
"status": "affected",
"version": "10.1(1)"
},
{
"status": "affected",
"version": "7.2(3)"
},
{
"status": "affected",
"version": "7.2(2)"
},
{
"status": "affected",
"version": "7.2(1)"
},
{
"status": "affected",
"version": "11.0(1)"
},
{
"status": "affected",
"version": "10.4(1)"
},
{
"status": "affected",
"version": "10.2(1)"
},
{
"status": "affected",
"version": "7.2(2a)"
},
{
"status": "affected",
"version": "10.1(2)"
},
{
"status": "affected",
"version": "7.1(1)"
},
{
"status": "affected",
"version": "12.1(1)"
},
{
"status": "affected",
"version": "11.1(1)"
},
{
"status": "affected",
"version": "10.3(1)"
},
{
"status": "affected",
"version": "10.3(1)R(1)"
},
{
"status": "affected",
"version": "7.0(1)"
},
{
"status": "affected",
"version": "10.0(1)"
},
{
"status": "affected",
"version": "7.1(2)"
},
{
"status": "affected",
"version": "11.4(1)"
},
{
"status": "affected",
"version": "10.4(2)"
},
{
"status": "affected",
"version": "11.3(1)"
},
{
"status": "affected",
"version": "11.5(1)"
},
{
"status": "affected",
"version": "11.5(2)"
},
{
"status": "affected",
"version": "11.5(3)"
},
{
"status": "affected",
"version": "12.0.1a"
},
{
"status": "affected",
"version": "11.5(3a)"
},
{
"status": "affected",
"version": "12.0.2d"
},
{
"status": "affected",
"version": "12.0.2f"
},
{
"status": "affected",
"version": "11.5(4)"
},
{
"status": "affected",
"version": "12.1.1"
},
{
"status": "affected",
"version": "12.1.1e"
},
{
"status": "affected",
"version": "12.1.1p"
},
{
"status": "affected",
"version": "12.1.2e"
},
{
"status": "affected",
"version": "12.1.2p"
},
{
"status": "affected",
"version": "12.1.3b"
},
{
"status": "affected",
"version": "12.2.1"
},
{
"status": "affected",
"version": "12.2.2"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Cisco",
"product": "Cisco Nexus Dashboard",
"versions": [
{
"status": "affected",
"version": "3.1(1k)"
},
{
"status": "affected",
"version": "3.1(1l)"
},
{
"status": "affected",
"version": "3.2(1e)"
},
{
"status": "affected",
"version": "3.2(1i)"
},
{
"status": "affected",
"version": "3.3(1a)"
},
{
"status": "affected",
"version": "3.3(1b)"
},
{
"status": "affected",
"version": "3.3(2b)"
},
{
"status": "affected",
"version": "4.0(1i)"
},
{
"status": "affected",
"version": "3.3(2g)"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2025-06-04T17:15:26.037",
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ndfc-shkv-snQJtjrp",
"tags": [
"Vendor Advisory"
],
"source": "psirt@cisco.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-322"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the SSH implementation of Cisco Nexus Dashboard Fabric Controller (NDFC) could allow an unauthenticated, remote attacker to impersonate Cisco NDFC-managed devices.\r\n\r\nThis vulnerability is due to insufficient SSH host key validation. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on SSH connections to Cisco NDFC-managed devices, which could allow an attacker to intercept this traffic. A successful exploit could allow the attacker to impersonate a managed device and capture user credentials."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la implementación SSH de Cisco Nexus Dashboard Fabric Controller (NDFC) podría permitir que un atacante remoto no autenticado se haga pasar por dispositivos administrados por Cisco NDFC. Esta vulnerabilidad se debe a una validación insuficiente de la clave de host SSH. Un atacante podría explotar esta vulnerabilidad mediante un ataque de máquina en el medio (MCI) en conexiones SSH a dispositivos administrados por Cisco NDFC, lo que podría permitirle interceptar este tráfico. Una explotación exitosa podría permitir al atacante hacerse pasar por un dispositivo administrado y obtener las credenciales del usuario."
}
],
"lastModified": "2026-06-17T08:40:49.813",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cisco:nexus_dashboard:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5913A4DA-CFB5-4FD1-8FD8-A481E5C384C5",
"versionEndExcluding": "3.2\\(2f\\)"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "psirt@cisco.com"
}