CVE-2026-103409

A Missing authentication for critical function vulnerability in Juniper Networks Session Smart Router allows an unauthenticated network-based attacker to obtain administrative privileges by passing crafted URL parameters to an insecure endpoint running as root. Note that this vulnerability can only be exploited prior to the device being onboarded to Mist/Conductor. The issue can no longer be exploited once a device is onboarded to Mist/Conductor.

Score
CVSS 3.1 9.8 Critical
Status
Awaiting Analysis - sirt@juniper.net
Published
2026-10-28
Last modified
2026-10-28
Weaknesses
CWE-306

Affected products

References

 
 
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