CVE-2026-102051
Una vulnerabilidad de liberación incorrecta de memoria antes de eliminar la última referencia en el proceso l2cpd de las plataformas Junos OS y Junos OS Evolved de Juniper Networks permite a un atacante adyacente no autenticado provocar el agotamiento de memoria de l2cpd y una interrupción del plano de control de la capa 2 mediante tráfico LLDP cuando el procesamiento de recepción rápida está habilitado.
Traducción automática del texto original de NVD (en inglés).
CVSS
- Puntuación base
- 7.1
- Versión
- 4.0
- Vector
- CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/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:Y/R:A/V:C/RE:M/U:X
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 0.27 %
- Percentil entre todas las CVEs puntuadas
- 18
- Fecha de la puntuación
- 20/10/2026
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
T1210Exploitation of Remote Serviceslateral movement90 % - Impacto principal
T1499Endpoint Denial of Serviceimpact85 %
Vector AV:A/PR:N/UI:N (red adyacente sin privilegios) indica T1210; el agotamiento de memoria en l2cpd por tráfico LLDP causa DoS del plano de control (VA:H).
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 (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-401
Referencias
Mostrar las 1 referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-102051",
"cveTags": [],
"metrics": {
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{
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"id": "CVE-2026-102051",
"role": "CISA Coordinator",
"options": [
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},
{
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},
{
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}
],
"version": "2.0.3",
"timestamp": "2026-10-14T20:04:54.586424Z"
}
}
],
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"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
],
"cvssMetricV40": [
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"valueDensity": "CONCENTRATED",
"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/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:Y/R:A/V:C/RE:M/U:X",
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"vulnIntegrityImpact": "NONE",
"integrityRequirement": "NOT_DEFINED",
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"vulnAvailabilityImpact": "HIGH",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "MODERATE",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
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"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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"affected": [
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{
"vendor": "Juniper Networks",
"product": "Junos OS Evolved",
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{
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"versionType": "custom"
},
{
"status": "affected",
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"lessThan": "25.4X300-D40-EVO",
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],
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}
],
"published": "2026-10-14T17:17:59.943",
"references": [
{
"url": "https://supportportal.juniper.net/JSA112187",
"source": "sirt@juniper.net"
}
],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"type": "Secondary",
"source": "sirt@juniper.net",
"description": [
{
"lang": "en",
"value": "CWE-401"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An Improper Release of Memory Before Removing Last Reference vulnerability in the l2cpd process of Juniper Networks Junos OS and Junos OS Evolved platforms allows an adjacent unauthenticated attacker to cause l2cpd memory exhaustion and Layer 2 control-plane disruption via LLDP traffic when fast receive processing is enabled."
}
],
"lastModified": "2026-10-15T16:23:06.250",
"sourceIdentifier": "sirt@juniper.net"
}