CVE-2026-33793
Severity CVSS v4.0:
HIGH
Type:
Unavailable / Other
Publication date:
09/04/2026
Last modified:
09/04/2026
Description
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.<br />
<br />
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. <br />
<br />
This issue affects Junos OS: <br />
<br />
* All versions before 22.4R3-S7, <br />
* from 23.2 before 23.2R2-S4, <br />
* from 23.4 before 23.4R2-S6,<br />
* from 24.2 before 24.2R1-S2, 24.2R2, <br />
* from 24.4 before 24.4R1-S2, 24.4R2; <br />
<br />
<br />
<br />
<br />
Junos OS Evolved: <br />
<br />
<br />
<br />
* All versions before 22.4R3-S7-EVO, <br />
* from 23.2 before 23.2R2-S4-EVO, <br />
* from 23.4 before 23.4R2-S6-EVO,<br />
* from 24.2 before 24.2R2-EVO, <br />
* from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO.
Impact
Base Score 4.0
8.50
Severity 4.0
HIGH
Base Score 3.x
7.80
Severity 3.x
HIGH