cvedb.io
CVE-2026-21902
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-02-25T18:23:40.360 · Last modified 2026-06-17T10:19:07.143

Summary

An Incorrect Permission Assignment for Critical Resource vulnerability in the On-Box Anomaly detection framework of Juniper Networks Junos OS Evolved on PTX Series allows an unauthenticated, network-based attacker to execute code as root. The On-Box Anomaly detection framework should only be reachable by other internal processes over the internal routing instance, but not over an externally exposed port. With the ability to access and manipulate the service to execute code as root a remote attacker can take complete control of the device. Please note that this service is enabled by default as no specific configuration is required. This issue affects Junos OS Evolved on PTX Series: * 25.4 versions before 25.4R1-S1-EVO, 25.4R2-EVO. This issue does not affect Junos OS Evolved vers

Affected products

juniper — junos_os_evolved

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.