CVE-2026-103405 — MEDIUM (5.8)

Vulnerability Description

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.

CVSS Score

5.8

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-74

References

https://supportportal.juniper.net/JSA112183

FAQ

What is CVE-2026-103405?

CVE-2026-103405 is a vulnerability with a CVSS score of 5.8 (MEDIUM). 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 Conduct...

How severe is CVE-2026-103405?

CVE-2026-103405 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-103405?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.