CVE-2025-21596 Junos OS: SRX1500,SRX4100,SRX4200: Execution of low-privileged CLI command results in chassisd crash

An Improper Handling of Exceptional Conditions vulnerability in the command-line processing of Juniper Networks Junos OS on SRX1500, SRX4100, and SRX4200 devices allows a local, low-privileged authenticated attacker executing the 'show chassis environment pem' command to cause the chassis daemon...

CVE-2025-21596

CVE-2025-21596 concerns Junos OS on SRX1500, SRX4100 and SRX4200. The issue stems from improper handling of exceptional conditions in the CLI when executing the local, low-privilege attacker’s command “show chassis environment pem,” which crashes the chassis daemon (chassisd) and restarts it, cre...