CVE-2026-103402 — HIGH (8.8)

Vulnerability Description

An Insufficient Verification of Data Authenticity vulnerability in PCLI in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with write access to the model cache directory to execute arbitrary code and escalate privileges via the processing of unverified cache files.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-345

References

https://supportportal.juniper.net/JSA112183

FAQ

What is CVE-2026-103402?

CVE-2026-103402 is a vulnerability with a CVSS score of 8.8 (HIGH). An Insufficient Verification of Data Authenticity vulnerability in PCLI in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with write access to the model cache dir...

How severe is CVE-2026-103402?

CVE-2026-103402 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-103402?

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