CVE-2026-103402

Session Smart Router and Session Smart Conductor: Lack of integrity verification in cache files causes arbitrary code execution and privilege escalation

Published Oct 28, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

The following software releases of Session Smart Router and Session Smart Conductor have been updated to resolve these specific issues: * 7.0.5 and all subsequent releases; * 7.1.7 and all subsequent releases; * 7.2.3 and all subsequent releases.


Vendor Workaround

There are no known workarounds for this issue.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Juniper
Juniper session Smart Conductor
Juniper session Smart Router
Vendors & Products Juniper
Juniper session Smart Conductor
Juniper session Smart Router
Type Values Removed Values Added
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.
Title Session Smart Router and Session Smart Conductor: Lack of integrity verification in cache files causes arbitrary code execution and privilege escalation
Weaknesses CWE-345
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
juniper
Published
Updated
Nov 6, 2026, 6:31 PM
Reserved
Sep 30, 2026, 2:33 PM
Status
Awaiting Analysis
Published
Oct 28, 2026, 5:17 PM
Modified
Nov 6, 2026, 7:17 PM