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CVE-2026-103409critical9.8

Session Smart Router: An attacker obtains administrative privileges when an unauthenticated internal endpoint is accessed

Impact

A Juniper Networks Session Smart Router vulnerability allows an unauthenticated network-based attacker to obtain administrative privileges by accessing an insecure endpoint. The issue affects versions prior to 7.0.5, 7.1.7, and 7.2.3, but only before the device is onboarded to Mist/Conductor. The weakness is due to missing authentication for a critical function.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

What to do

The following software releases of Session Smart Router have been updated to resolve these specific issues:

  • 7.0.5

and all subsequent releases;

  • 7.1.7

and all subsequent releases;

  • 7.2.3 and all subsequent releases.
juniper guidance

There are no known workarounds for this issue.

juniper guidance

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Juniper Networks · juniper

Session Smart Router

3 ranges
juniper version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 7.0.5

custom versions

7.1.0 → before 7.1.7

custom versions

7.2.0 → before 7.2.3

custom versions

unaffected

unknown

Other versions: unaffected

Original source 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.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-103409

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-306 ↗

CWE-306 Missing authentication for critical function

juniper

Related →
Contributing organizations · 1
juniper

Assigning organization

2026-10-28

What changed

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Large field values are marked as truncated previews. Original source snapshots remain retained.

References

1 sources
supportportal.juniper.net/JSA112183
vendor-advisoryjuniper