Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-21916

Gravedad CVSS v4.0:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
09/04/2026
Última modificación:
09/04/2026

Descripción

*** Pendiente de traducción *** A UNIX Symbolic Link (Symlink) Following vulnerability in the CLI of Juniper Networks Junos OS allows a local, authenticated attacker with low privileges to escalate their privileges to root which will lead to a complete compromise of the system.<br /> <br /> When after a user has performed a specific &amp;#39;file link ...&amp;#39; CLI operation, another user commits (unrelated configuration changes), the first user can login as root.<br /> <br /> This issue affects Junos OS:<br /> * all versions before 23.2R2-S7,<br /> * 23.4 versions before 23.4R2-S6,<br /> * 24.2 versions before 24.2R2-S3,<br /> * 24.4 versions before 24.4R2-S2,<br /> * 25.2 versions before 25.2R2.<br /> <br /> <br /> This issue does not affect versions 25.4R1 or later.

Referencias a soluciones, herramientas e información