What’s Vulnerable › Vulnerabilities
CVE-2026-102079: Junos OS: MX Series: Missing Authorization for specific 'request' CLI commands allows command injection
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-14 · updated 2026-10-15
- Weakness: CWE-78
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.
Affected products
- Juniper Junos OS: from 24.4 before 24.4R2-S4; from 25.2 before 25.2R2-S1; from 25.4 before 25.4R1-S3 — fixed in 24.4R2-S4, 25.2R2-S1, 25.4R1-S3
How to fix
Upgrade to a fixed version: Juniper Junos OS 24.4R2-S4, 25.2R2-S1, 25.4R1-S3. Check the vendor advisory for mitigations.
References
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