CVE-2026-20032
Estado: RecibidaMedia (4.4)—
A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device.
This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by manipulating specific functions within the Python interpreter. A successful exploit could allow an attacker to escape the Python sandbox and execute arbitrary commands on the underlying operating system with the privileges of the authenticated user.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Puntuación base: 4.4
Probabilidad de explotación (EPSS)
FIRST aún no ha puntuado esta CVE (habitual en CVEs muy recientes o rechazadas).
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
T1068Exploitation for Privilege Escalationprivilege escalation85 % - Impacto principal
T1059Command and Scripting Interpreterexecution80 % - Impacto secundario
T1078Valid Accountsstealth · persistence · privilege escalation · initial access65 %
AV:L + PR:L sin UI:R → escalada de privilegios local (T1068). Escapar sandbox Python permite ejecución de comandos arbitrarios (T1059) con privilegios del usuario autenticado (T1078).
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 (8)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-653
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-20032",
"cveTags": [],
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{
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"source": "psirt@cisco.com",
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"version": "3.1",
"baseScore": 4.4,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "LOW"
},
"impactScore": 2.5,
"exploitabilityScore": 1.8
}
]
},
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"defaultStatus": "unknown"
}
]
}
],
"published": "2026-10-07T17:16:54.480",
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mppe-dhKZAFgb",
"source": "psirt@cisco.com"
}
],
"vulnStatus": "Received",
"weaknesses": [
{
"type": "Primary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-653"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by manipulating specific functions within the Python interpreter. A successful exploit could allow an attacker to escape the Python sandbox and execute arbitrary commands on the underlying operating system with the privileges of the authenticated user."
}
],
"lastModified": "2026-10-07T17:16:54.480",
"sourceIdentifier": "psirt@cisco.com"
}