CVE-2026-101956: Junos OS: Unauthorized root command execution when J-Web is enabled
Published Oct 14, 2026
·Updated
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 Software
1 affected component
Juniper Networks Junos OS
Event History
Oct 14, 2026
CVE Published
via MITRE·04:18 PM
Data Sourced
via MITRE·04:18 PM
RemedyDescriptionSeverityWeakness
Frequently Asked Questions
1
Which systems are exposed to this issue?
Juniper Networks Junos OS systems with the J-Web web management component enabled and exposed to a remote attacker are affected by the described attack path.
2
Does exploitation require an account or user interaction?
No. The vulnerability is described as exploitable by an unauthenticated remote attacker, with no user interaction required.
3
What level of access could an attacker obtain?
An attacker could execute arbitrary Junos commands with root privileges, resulting in high impact to confidentiality, integrity, and availability.