VDB

CVE-2026-103390

CVE-2026-103390 PUBLISHED CVSS 5.3 MEDIUM

Reported by juniper · Published October 28, 2026

An Out-of-Bounds Read vulnerability in the HttpParser component in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to cause a denial of service via a specially crafted HTTP request.

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
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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 (2 in total, the first dated here)
  • 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-2026-103390
vulnetix vdb fixes CVE-2026-103390

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-2026-103390/fixes/registry"

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References

  • vendor-advisory
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