Improper Neutralization of Special Elements
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 7.2.3 : update Session Smart Router when convenient.
Data as of 28 Oct 2026, 20:12 UTC
- Patch
- Available – fixed in 7.2.3, 7.1.7, 7.0.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| Juniper NetworksSession Smart Router | Affected
| Fixed in
|
| Juniper NetworksSession Smart Router | Affected
| Fixed in
|
| Juniper NetworksSession Smart Router | Affected
| Fixed in
|
| Juniper NetworksSession Smart Conductor | Affected
| Fixed in
|
| Juniper NetworksSession Smart Conductor | Affected
| Fixed in
|
| Juniper NetworksSession Smart Conductor | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, restrict local access to trusted users only and monitor for unusual filesystem or service behavior.
Description
CVE-2026-103400 is an injection vulnerability in the ember service of Juniper Networks Session Smart Router and Session Smart Conductor. It allows a local attacker to create specially named directories that can lead to unmounting arbitrary filesystems or cause a denial of service after a service restart. The vulnerability requires local access and does not impact confidentiality or integrity but affects availability.