Critical Root RCE Vulnerability Patched in Juniper PTX Series Routers

[beyondmachines1@infosec.exchange]

Critical Root RCE Vulnerability Patched in Juniper PTX Series Routers

Juniper Networks patched a critical vulnerability (CVE-2026-21902) in Junos OS Evolved on PTX Series routers that allows unauthenticated attackers to gain root access via a framework that should have been internal but is publicly exposed and not authenticated.

**If you are using Junos OS Evolved, this is important. Either immediately patch your PTX Series routers or disable the 'On-Box Anomaly Detection' service. Depending on configuration, review if you can isolate the network devices from the public internet to mitigate the impact.**
#cybersecurity #infosec #advisory #vulnerability
https://beyondmachines.net/event_details/critical-root-rce-vulnerability-patched-in-juniper-ptx-series-routers-i-9-2-e-h/gD2P6Ple2L