CVE-2025-21589

An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router may allows a network-based attacker to bypass authentication and take administrative control of the device.

This issue affects Session Smart Router:

• from 5.6.7 before 5.6.17,
• from 6.0 before 6.0.8 (affected from 6.0.8),

• from 6.1 before 6.1.12-lts,
• from 6.2 before 6.2.8-lts,
• from 6.3 before 6.3.3-r2;

This issue affects Session Smart Conductor:

• from 5.6.7 before 5.6.17,
• from 6.0 before 6.0.8 (affected from 6.0.8),

• from 6.1 before 6.1.12-lts,
• from 6.2 before 6.2.8-lts,
• from 6.3 before 6.3.3-r2;

This issue affects WAN Assurance Managed Routers:

• from 5.6.7 before 5.6.17,
• from 6.0 before 6.0.8 (affected from 6.0.8),

• from 6.1 before 6.1.12-lts,
• from 6.2 before 6.2.8-lts,
• from 6.3 before 6.3.3-r2.