CVE-2026-103402 Juniper Networks Session Smart Router & Conductor - Authentication Bypass

Juniper Networks Session Smart Router and Session Smart Conductor contain an insufficient verification of data authenticity vulnerability caused by processing unverified cache files in PCLI, letting attackers with write access to the model cache directory execute arbitrary code and escalate privileges.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Remote Code Execution, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
28 October 2026
Updated
29 October 2026
Weakness
CWE-345

Vendor fix

Update to the latest version with the vulnerability fixed.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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