SB2026022617 - Remote code execution in Juniper Networks Junos OS Evolved on PTX Series
Published: February 26, 2026
Security Bulletin ID
SB2026022617
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incorrect permission assignment for critical resource (CVE-ID: CVE-2026-21902)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to incorrect permissions assignment in the On-Box Anomaly detection framework. A remote non-authenticated attacker can send specially crafted data to the system and execute arbitrary code as root.
Remediation
Install update from vendor's website.