VDB

CVE-2026-103400

CVE-2026-103400 PUBLISHED CVSS 5.5 MEDIUM

Reported by juniper · Published October 28, 2026

An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the ember service in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with local access to unmount arbitrary filesystems or cause a denial of service via the creation of specially named directories and a service restart.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
Session Smart RouterJuniper Networks7.2.3, 7.1.7, 7.0.5
Session Smart ConductorJuniper Networks7.2.3, 7.1.7, 7.0.5

Risk scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

VendorProductVersions
Juniper NetworksSession Smart Router0, 7.1.0, 7.2.0
Juniper NetworksSession Smart Conductor0, 7.1.0, 7.2.0
Juniper NetworksSession Smart Router0, 7.1.0, 7.2.0
Juniper NetworksSession Smart Conductor0, 7.1.0, 7.2.0

Timeline

  • Oct 28, 2026 CVE Published
  • Oct 28, 2026 PoC Published
  • Oct 29, 2026 EPSS Score
  • Oct 29, 2026 Coalition ESS Score
  • Oct 29, 2026 CVE Updated

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-103400
vulnetix vdb fixes CVE-2026-103400

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-103400/fixes/registry"

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References

  • vendor-advisory
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