Junos OS Evolved: PTX Series: A vulnerability allows a unauthenticated, network-based attacker to execute code as root
Juniper NetworksJunos OS Evolved
- Not in CISA KEV
- Vendor fix available
Higher than 97% of scored CVEs
Description NVD
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 versions before 25.4R1-EVO. This issue does not affect Junos OS.
Coverage 2 articles · 2 outlets
See the full timelineShow as table
| Published (UTC) | Outlet | Headline |
|---|---|---|
| Fri 27 Feb · 10:51 UTC | SecurityWeek | Juniper fixes CVE-2026-21902 RCE in Junos OS Evolved |
| Fri 27 Feb · 12:54 UTC | Security Affairs | Juniper CVE-2026-21902 targets PTX routers with RCE flaw |
- Juniper CVE-2026-21902 targets PTX routers with RCE flawSecurity Affairs
- Juniper fixes CVE-2026-21902 RCE in Junos OS EvolvedSecurityWeek · first in our coverage