Auth bypass in Juniper Junos

CVE-2026-33785

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.

Vulnerability class: Broken Access Control

EPSS: 0.001 (3.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-33785?
CVE-2026-33785 is a high-severity vulnerability in Juniper Junos, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-04-09.
How severe is CVE-2026-33785?
High severity. CVSS v3 base score is 8.8 out of 10.