Juniper Networks Product Security Update Advisory (CVE-2026-21902)
Overview
Juniper Networks has released security updates that address vulnerabilities in its products. users of affected products are advised to update to the latest version.
Affected Products
CVE-2026-21902
Junos OS Evolved on PTX Series 25.4 version: 25.4R1-S1-EVO and earlier
Junos OS Evolved on PTX Series 25.4 version: 25.4R2-EVO and earlier
Resolved Vulnerabilities
Remote code execution vulnerability due to improper privilege assignment in the On-Box Anomaly Detection framework in Junos OS Evolved on PTX Series (CVE-2026-21902)
Vulnerability Patches
Vulnerability patches have been made available in the latest updates. Please follow the instructions on the Referenced Sites to update to the latest version of Vulnerability Patches.
CVE-2026-21902
Junos OS Evolved on PTX Series 25.4 version: 25.4R1-S1-EVO and later
Junos OS Evolved on PTX Series 25.4 version: 25.4R2-EVO and later
references
[1] 2026-02 Out-of-Cycle Security Bulletin: Junos OS Evolved: PTX Series: A vulnerability allows an unauthenticated, network-based attacker to execute code as root (CVE-2026-21902)