CVE-2026-103409
Session Smart Router: An attacker obtains administrative privileges when an unauthenticated internal endpoint is accessed
CRITICAL 9.8
At a glance
- Source
- CVE.org
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
Description
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.
Weaknesses (CWE)
- CWE-306 — Missing Authentication for Critical Functionality
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | juniper |
European references
- ENISA EUVD · EUVD-2026-112212
- GCVE · GCVE-0-2026-103409
CERT-FR advisories
- CERTFR-2026-AVI-1414 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Session Smart Router | affected 0 < 7.0.5 ; affected 7.1.0 < 7.1.7 ; affected 7.2.0 < 7.2.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |