SB2026040941 - Privilege escalation in Junos OS CLI



SB2026040941 - Privilege escalation in Junos OS CLI

Published: April 9, 2026

Security Bulletin ID SB2026040941
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Missing Authorization (CVE-ID: CVE-2026-33785)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to execute specific commands to completely compromise managed devices.

The vulnerability exists due to missing authorization in the CLI when handling 'request csds' CLI operational commands in a JDM/CSDS scenario. A local user can issue 'request csds' commands to completely compromise managed devices.

Only MX Series devices in a JDM/CSDS deployment scenario are affected.


Remediation

Install update from vendor's website.