- 46/2026
- Critical
Juniper has released a security update to fix a critical vulnerability affecting Juniper Networks Junos OS Evolved on PTX Series.
The addressed vulnerability could allow the unauthenticated, network-based attacker to access and manipulate the On-Box Anomaly Detection framework service to execute code as root and gain full access to the affected system.
Juniper Junos OS Evolved on PTX Series Code Execution Vulnerability (CVE-2026- 21902):
- CVSS: 9.8
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Consequences: Gain Access
Vulnerabilities
CVE-2026-21902
Mitigations
The enterprise should deploy this patch as soon as the testing phase is completed.