Denial of Service Vulnerability in Junos OS by Juniper Networks

CVE-2025-30652

Summary

A vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS allows local, low-privileged attackers to cause a Denial of Service. When the 'show route as-path' CLI command is executed with asregex-optimized configured, it triggers a crash and restart of the rpd service. By repeating this command, attackers can maintain a continuous DoS condition, disrupt network operations, and potentially impact the availability of critical services. This issue affects multiple versions of both Junos OS and Junos OS Evolved, necessitating prompt updates to ensure security.

References