CVE-2026-102079

Junos OS: MX Series: Missing Authorization for specific 'request' CLI commands allows command injection

State: Published
Severity: 8.5 High
Published: Oct 14, 2026
Updated: Oct 15, 2026
Reserved: Sep 28, 2026

Description

An OS command injection vulnerability in the CLI of Juniper Networks Junos OS allows a local, low privileged attacker to take complete control of the device.

A specific 'request csds' command doesn't sanitize user provided input so that it can be interpreted as a command. This allows unintended command execution with root privileges, which can lead to unauthorized system access or modification.

This issue affects Junos OS:

* 24.4 versions before 24.4R2-S4; * 25.2 versions before 25.2R2-S1; * 25.4 versions before 25.4R1-S3;

This issue does not affect Junos OS releases before 24.4R1.

Scores

CVSS	Score	Vector	Source
4.0	8.5 High	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/AU:Y/R:U/RE:M	juniper
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	juniper

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
Junos OSJuniper Networks	24.4 to before 24.4R2-S4Affected 25.2 to before 25.2R2-S1Affected 25.4 to before 25.4R1-S3Affected

References

https://supportportal.juniper.net/JSA112180vendor-advisory

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