CVE-2026-101956 — Junos OS: Unauthorized root command execution when J-Web is enabled

CVE-2026-101956

Junos OS: Unauthorized root command execution when J-Web is enabled PUBLISHED

Description (CNA)

An Improper Authentication vulnerability in the J-Web web management component of Juniper Networks Junos OS allows an unauthenticated remote attacker to execute arbitrary Junos commands with root privileges via the exposed J-Web web interface.

Affected (CNA)

Vendor / product	Versions
Juniper Networks / Junos OS	affected 25.2 before 25.2R2-S2; affected 25.4 before 25.4R1-S3; affected 26.2 before 26.2R1-S2

CWE

CWE-287

References

https://supportportal.juniper.net/JSA112188

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.