Junos OS (SRX firewalls)
CVE-2026-33785: MX Series: Missing Authorization for specific 'request' CLI commands in a JDM/CSDS scenario
A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on MX Series allows a local, authenticated user with low privileges to execute specific commands which will lead to a complete compromise of managed devices.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Junos OS (MX Series) 24.4 | 24.4R2-S3 or later |
| Junos OS (MX Series) 25.2 | 25.2R2 or later |
| Junos OS (MX Series) 0 | Not affected |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on MX Series allows a local, authenticated user with low privileges to execute specific commands which will lead to a complete compromise of managed devices.
Any user logged in, without requiring specific privileges, can issue 'request csds' CLI operational commands. These commands are only meant to be executed by high privileged or users designated for Juniper Device Manager (JDM) / Connected Security Distributed Services (CSDS) operations as they will impact all aspects of the devices managed via the respective MX.
This issue affects Junos OS on MX Series:
- 24.4 releases before 24.4R2-S3,
- 25.2 releases before 25.2R2.
This issue does not affect Junos OS releases before 24.4.
Am I affected?
The MX Series device needs to be configured for JNU as follows:
[ chassis jnu-management ]
Workarounds
Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.
Utilize CLI authorization to disallow execution of the 'request csds' commands.
Exploitation
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.