CVE-2025-30661 Information

Jul 12, 2025 cve

Description

An Incorrect Permission Assignment for Critical Resource vulnerability in line card script processing of Juniper Networks Junos OS allows a local low-privileged user to install scripts to be executed as root leading to privilege escalation.

A local user with access to the local file system can copy a script to the router in a way that will be executed as root as the system boots. Execution of the script as root can lead to privilege escalation potentially providing the adversary complete control of the system.

This issue only affects specific line cards such as the MPC10 MPC11 LC4800 LC9600 MX304-LMIC16 SRX4700 and EX9200-15C.

This issue affects Junos OS: from 23.2 before 23.2R2-S4  from 23.4 before 23.4R2-S5  from 24.2 before 24.2R2-S1  from 24.4 before 24.4R1-S3 24.4R2.

This issue does not affect versions prior to 23.1R2.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Reference

https://github.com/orangecertcc/security-research/security/advisories/GHSA-2p66-9j7x-fmch https://supportportal.juniper.net/JSA100057

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.3

CNNVD-202507-1648 (Published: 2025-07-11)

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