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VULNERABILITIES

CVE-2026-103409 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://supportportal.juniper.net/JSA112183 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-306Missing Authentication for Critical Function[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-103409
NVD Published Date:
Oct 28, 2026
NVD Last Modified:
Nov 6, 2026
Source:
[email protected]
CVE-2026-103409 Details - Not Deferred