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CVE-2026-103403VulnerabilityPublished

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in

Source GCVE Database

0
Authoritative record:CVE-2026-103403· High 8.8

Not known to be exploited · CVSS 8.8 High · fixed in 7.2.3 : patch Session Smart Router soon.

Data as of 28 Oct 2026, 19:42 UTC

CVSS 3.1 base score
8.8High
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:L/UI:N/S:U/C:H/I:H/A:H

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

If you cannot patch yet, restrict access to the AccessManager component and audit rule deletion functionality to trusted users only.

Description

CVE-2026-103403 is an OS Command Injection vulnerability in Juniper Networks Session Smart Router and Session Smart Conductor's AccessManager component. It allows an attacker with limited privileges to execute arbitrary commands and delete files by exploiting improper neutralization of special elements during audit rule deletion. The vulnerability has a high severity score of 8.8 and affects confidentiality, integrity, and availability.

References

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