CVE-2026-102049

Estado: Pendiente de análisisAlta (8.7)—

Gravedad8.7Alta · CVSS 4.0

Probabilidad de explotación0.34 %mayor que el 26 % de las CVE

Explotación activaNono figura en el catálogo de CISA

Exploit públicoNo conocidosin código público localizado

Una vulnerabilidad de desbordamiento de búfer basado en pila en el proceso l2cpd de Juniper Networks Junos OS y Junos OS Evolved permite a un atacante adyacente no autenticado provocar una denegación de servicio o ejecutar código arbitrario con privilegios de root mediante tráfico LLDP recibido en una interfaz con Unified Access Policy habilitado.

Traducción automática del texto original de NVD (en inglés).

CVSS

Puntuación base: 8.7
Versión: 4.0
Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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: 0.34 %
Percentil entre todas las CVEs puntuadas: 26
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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1059 Command and Scripting Interpreterexecution75 %
Impacto secundarioT1068 Exploitation for Privilege Escalationprivilege escalation60 %
Impacto secundarioT1499 Endpoint Denial of Serviceimpact80 %

Vector AV:A/PR:N/UI:N (red adyacente sin interacción) da T1210; la descripción cita ejecución de código arbitrario con privilegios root y denegación de servicio vía tráfico LLDP.

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

Threat Intelligence Program Privileged Account Management Execution Prevention Disable or Remove Feature or Program Application Isolation and Sandboxing Exploit Protection

Tecnologías afectadas (2)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Juniper — Junos OS^AI Juniper — Junos OS Evolved^AI

CWE

CWE-121

Referencias

Mostrar las 1 referencias

https://supportportal.juniper.net/JSA112187

JSON original (NVD)

Mostrar

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  "id": "CVE-2026-102049",
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          "id": "CVE-2026-102049",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
            },
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              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "MODERATE",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "published": "2026-10-14T17:17:59.560",
  "references": [
    {
      "url": "https://supportportal.juniper.net/JSA112187",
      "source": "sirt@juniper.net"
    }
  ],
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      "description": [
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      "value": "A Stack-based Buffer Overflow vulnerability in the l2cpd process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a denial of service or execute arbitrary code with root privileges via LLDP traffic received on an interface with Unified Access Policy enabled."
    }
  ],
  "lastModified": "2026-10-16T15:17:00.873",
  "sourceIdentifier": "sirt@juniper.net"
}