Skip to content
OpenAdvisories
Critical · 9.8 CVE-2025-21589 EUVD-2025-206381GHSA-vjjg-c428-g9r3

Session Smart Router, Session Smart Conductor, WAN Assurance Router: API Authentication Bypass vulnerability

Published Jan 27, 2026 · Updated Jan 27, 2026 · Assigned by juniper

Description

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.

Affected products

VendorProductAffectedFixed
Juniper Networks Session Smart Router 5.6.7 – < 5.6.17, 6.1 – < 6.1.12-lts, 6.2 – < 6.2.8-lts, 6.3 – < 6.3.3-r2 5.6.17
Juniper Networks Session Smart Conductor 5.6.7 – < 5.6.17, 6.1 – < 6.1.12-lts, 6.2 – < 6.2.8-lts, 6.3 – < 6.3.3-r2 5.6.17
Juniper Networks WAN Assurance Managed Router 5.6.7 – < 5.6.17, 6.1 – < 6.1.12-lts, 6.2 – < 6.2.8-lts, 6.3 – < 6.3.3-r2 5.6.17

Advisories 2

References