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High7.8Juniper Networks

High [CVE-2026-33793] Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system

This high-severity Juniper Networks advisory covers CVE-2026-33793 affecting Junos OS, Junos OS Evolved, Junos.

CVE-2026-33793 Published Apr 9, 2026Updated by vendor Jun 17, 2026
CVE-2026-33793
Affected products & platforms
Juniper NetworksJunosJunos OS Evolved
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Summary

An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.

When a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation.

This issue affects Junos OS:

  • All versions before 22.4R3-S7,
  • from 23.2 before 23.2R2-S4,
  • from 23.4 before 23.4R2-S6,
Affected versions
  • * All versions before 22

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • 22.4R3-S7
  • 23.2R2-S4
  • 23.4R2-S6
  • 24.2R1-S2
  • 24.4R1-S2
  • 22.4R3-S7-EVO
  • 23.2R2-S4-EVO
  • 23.4R2-S6-EVO
  • 24.2R2-EVO
  • 24.4R1-S1-EVO

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation

Upgrade to a fixed release: 22.4R3-S7, 23.2R2-S4, 23.4R2-S6, 24.2R1-S2, 24.4R1-S2, 22.4R3-S7-EVO. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Discussion(0)

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