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CVE-2026-103405VulnerabilityPublished

Improper Neutralization of Special Elements

Source GCVE Database

0
Authoritative record:CVE-2026-103405· Medium 5.8

Not known to be exploited · CVSS 5.8 Medium · fixed in 7.2.3 : update Session Smart Router when convenient.

Data as of 28 Oct 2026, 20:00 UTC

CVSS 3.1 base score
5.8Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 7.2.3, 7.1.7, 7.0.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Session Smart to 7.2.3, 7.1.7 or 7.0.5.

Affected software

ProductAffectedFixed in
Juniper NetworksSession Smart RouterAffected
  • >=7.2.0 <7.2.3
Fixed in
  • 7.2.3
Juniper NetworksSession Smart RouterAffected
  • >=7.1.0 <7.1.7
Fixed in
  • 7.1.7
Juniper NetworksSession Smart RouterAffected
  • <7.0.5
Fixed in
  • 7.0.5
Juniper NetworksSession Smart ConductorAffected
  • >=7.2.0 <7.2.3
Fixed in
  • 7.2.3
Juniper NetworksSession Smart ConductorAffected
  • >=7.1.0 <7.1.7
Fixed in
  • 7.1.7
Juniper NetworksSession Smart ConductorAffected
  • <7.0.5
Fixed in
  • 7.0.5

AI-suggested

No specific mitigation steps are provided in the current data.

Description

CVE-2026-103405 is an injection vulnerability in the web server component of Juniper Networks Session Smart Router and Session Smart Conductor. It allows an attacker to inject arbitrary HTTP headers by exploiting unsanitized request body parameters. The vulnerability has a medium severity with a CVSS score of 5.8.

References

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