Juniper Issues Urgent Fix for Actively Exploited Junos OS Flaw – CVE-2025-21590 Vulnerability Juniper Issues Urgent Fix for Actively Exploited Junos OS Flaw – CVE-2025-21590 Do Son March 13, 2025 0 Learn about CVE-2025-21590, an actively exploited vulnerability in Junos OS that allows local code execution for attackers.