CVE-2026-103409
Session Smart Router: An attacker obtains administrative privileges when an unauthenticated internal endpoint is accessed
CRITICAL 9.8EPSS 0.3%
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.
- Affected
- Juniper Networks · Session Smart Router
- CVSS v3.1 JUNIPER
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.35% chance of exploitation in the next 30 days, 28th percentile
- Published
- 2026-10-28
Proof-of-concept exploits (1)
- Hunt-Benito/the-unguarded-first-day-cve-2026-103409-juniper-session-smart-routerRepo stars 0★ · pushed 2026-10-30 · find archive
1 file