CVE-2026-101991

Estado: Pendiente de análisisMedia (5.3)—

Gravedad5.3Media · CVSS 4.0

Probabilidad de explotación0.19 %mayor que el 8 % de las CVE

Explotación activaNono figura en el catálogo de CISA

Exploit públicoNo conocidosin código público localizado

Una vulnerabilidad de gestión inadecuada de la inconsistencia en el parámetro de longitud (Improper Handling of Length Parameter Inconsistency) en el demonio de protocolos de enrutamiento (rpd) de Juniper Networks Junos OS y Junos OS Evolved permite que un par BGP-LS configurado provoque la divulgación de datos del montón (heap) mediante un mensaje UPDATE malformado enviado a través de una sesión con la familia de direcciones de ingeniería de tráfico habilitada.

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

CVSS

Puntuación base: 5.3
Versión: 4.0
Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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:X/R:X/V:X/RE:X/U:X

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.19 %
Percentil entre todas las CVEs puntuadas: 8
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 principalT1005 Data from Local Systemcollection70 %

Vector AV:A/PR:N/UI:N (red adyacente, sin privilegios ni interacción) y descripción: un peer BGP-LS configurado envía un UPDATE malformado que provoca divulgación de datos del heap (CWE-130).

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

Vulnerability Scanning Threat Intelligence Program Privileged Account Management Network Segmentation Disable or Remove Feature or Program Application Isolation and Sandboxing

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-130

Referencias

Mostrar las 1 referencias

https://supportportal.juniper.net/JSA112187

JSON original (NVD)

Mostrar

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