CVE-2020-3257
Estado: ModificadaAlta (8.1)—
Múltiples vulnerabilidades en el entorno de aplicación Cisco IOx de Cisco 809 y 829 Industrial Integrated Services Routers (Industrial ISRs) y Cisco 1000 Series Connected Grid Routers (CGR1000) que ejecuta Cisco IOS Software, podrían permitir a un atacante causar una condición de denegación de servicio (DoS) o ejecutar código arbitrario con privilegios elevados sobre un dispositivo afectado. Para mayor información sobre estas vulnerabilidades, consulte la sección Detalles de este aviso.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- Puntuación base: 8.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.70%
- Percentil entre todas las CVEs puntuadas: 52
- Fecha de la puntuación: 11/10/2026
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).
Tecnologías afectadas (1)
CWE
- CWE-20
- CWE-119
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2020-3257",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2020-3257",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-11-15T16:27:52.076991Z"
}
}
],
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4.8,
"accessVector": "ADJACENT_NETWORK",
"vectorString": "AV:A/AC:L/Au:N/C:N/I:P/A:P",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 4.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 6.5,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.0",
"baseScore": 8.1,
"attackVector": "ADJACENT_NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 5.2,
"exploitabilityScore": 2.8
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.1,
"attackVector": "ADJACENT_NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 5.2,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "psirt@cisco.com",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco IOS 12.2(60)EZ16",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2020-06-03T18:15:21.840",
"references": [
{
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-iot-gos-vuln-s9qS8kYL",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "psirt@cisco.com"
},
{
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-iot-gos-vuln-s9qS8kYL",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-20"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-119"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Multiple vulnerabilities in the Cisco IOx application environment of Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) that are running Cisco IOS Software could allow an attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory."
},
{
"lang": "es",
"value": "Múltiples vulnerabilidades en el entorno de aplicación Cisco IOx de Cisco 809 y 829 Industrial Integrated Services Routers (Industrial ISRs) y Cisco 1000 Series Connected Grid Routers (CGR1000) que ejecuta Cisco IOS Software, podrían permitir a un atacante causar una condición de denegación de servicio (DoS) o ejecutar código arbitrario con privilegios elevados sobre un dispositivo afectado. Para mayor información sobre estas vulnerabilidades, consulte la sección Detalles de este aviso."
}
],
"lastModified": "2026-06-17T03:17:47.450",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:cisco:ios:15.8\\(3.0z\\)m1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "02EC0719-9B7C-48FA-8354-B1433F3C5435"
},
{
"criteria": "cpe:2.3:o:cisco:ios:15.9:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AFA9B42B-5D01-40F8-9981-7E094534F3C6"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:cisco:1120_connected_grid_router:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6835F8AD-B55D-4B57-B3B5-0095E309B2B3"
},
{
"criteria": "cpe:2.3:h:cisco:1240_connected_grid_router:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "1AB6ACAE-8C89-48F6-95BA-DE32F4F81FE6"
},
{
"criteria": "cpe:2.3:h:cisco:ir809g-lte-ga-k9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "47B4B073-21C9-43EC-9F3E-6B9E14302D49"
},
{
"criteria": "cpe:2.3:h:cisco:ir809g-lte-la-k9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "661C304A-BE1A-4A5A-8B35-B18725082AB2"
},
{
"criteria": "cpe:2.3:h:cisco:ir809g-lte-na-k9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "1189BB4A-AE5E-450E-AC4C-B5A03172799F"
},
{
"criteria": "cpe:2.3:h:cisco:ir809g-lte-vz-k9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "168FA298-68C0-4BB1-A94A-21E3615FBA6C"
},
{
"criteria": "cpe:2.3:h:cisco:ir829-2lte-ea-ak9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EB62C534-29F8-48CA-9D45-42C49CE68577"
},
{
"criteria": "cpe:2.3:h:cisco:ir829-2lte-ea-bk9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B670C5A3-4E19-428F-87D0-C2B12EE2CB92"
},
{
"criteria": "cpe:2.3:h:cisco:ir829-2lte-ea-ek9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6BF5C3D3-833D-405B-8E1E-ED3BC29CD5E0"
},
{
"criteria": "cpe:2.3:h:cisco:ir829gw-lte-ga-ck9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "F8D39174-298E-4C06-A289-B0C4585B2E99"
},
{
"criteria": "cpe:2.3:h:cisco:ir829gw-lte-ga-ek9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "CB259DDC-AB98-405E-A369-49A3B89F48F5"
},
{
"criteria": "cpe:2.3:h:cisco:ir829gw-lte-ga-sk9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "99B57D05-6702-4026-9E36-0CBEC6BE8001"
},
{
"criteria": "cpe:2.3:h:cisco:ir829gw-lte-ga-zk9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "CC62F7A8-9D57-4703-A7DF-451C2CA75919"
},
{
"criteria": "cpe:2.3:h:cisco:ir829gw-lte-na-ak9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "78F497A3-8153-4524-9E8D-2CFDCF2ADCDE"
},
{
"criteria": "cpe:2.3:h:cisco:ir829gw-lte-vz-ak9:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "61BD4298-A8D5-4D7C-A9D9-694606042C12"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "psirt@cisco.com"
}