High severity · published Oct 14, 2026
CVE-2026-102079
Junos OS: MX Series: Missing Authorization for specific 'request' CLI commands allows command injection
7.8
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Junos OS · Juniper
24.4 before 24.4R2-S4; 25.2 before 25.2R2-S1; 25.4 before 25.4R1-S3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102079
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-102079
vendor-advisory
https://supportportal.juniper.net/JSA112180
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