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Fencer Vulns
medium 5.8

CVE-2026-103405 json

Session Smart Router and Session Smart Conductor: Unsanitized input causes HTTP response splitting

published 2026-10-28 11 d ago modified 2026-11-06 2 d ago also EUVD-2026-112216

cvss
5.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits
0
none known

Summary

An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the web server in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to inject arbitrary HTTP headers via unsanitized request body parameters.

Patch / fix

  • Juniper Networks Session Smart Router 7.0.5, 7.1.7, 7.2.3
  • Juniper Networks Session Smart Conductor 7.0.5, 7.1.7, 7.2.3

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 d ago

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Affected products

  • Juniper Networks Session Smart Router
  • Juniper Networks Session Smart Conductor

Classification

Weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.