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CVE-2026-103407

Session Smart Router and Session Smart Conductor: Unsanitized input allows arbitrary file read, overwrite, or deletion via the PKI management

An Improper Limitation of a Pathname to a Restricted Directory vulnerability in ConfigDirector in Juniper Networks Session Smart Router and Session Smart Conductor allows an authenticated REST user to read, overwrite, or delete arbitrary certificate and key files on the host filesystem via the certificate and private-key REST API.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor Session Smart Router
CVE-2026-103406

Session Smart Conductor: An unauthenticated attacker causes arbitrary command execution during key management.

An Improper Neutralization of Special Elements used in an OS Command vulnerability in the AutomatedProvisioner in Juniper Networks Session Smart Conductor allows a remote attacker to execute arbitrary commands as root via a specially crafted salt minion ID.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor
CVE-2026-103405

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

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 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor Session Smart Router
CVE-2026-103404

Session Smart Conductor: Insecure file permissions cause unauthorized access to sensitive routing credentials

An Incorrect Permission Assignment for Critical Resource vulnerability in RoutingManager in Juniper Networks Session Smart Conductor allows a local user to access sensitive routing credentials via triggering processes that write to the /tmp directory.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor
CVE-2026-103403

Session Smart Router and Session Smart Conductor: Unvalidated input causes arbitrary file deletion and command execution when deleting audit rules

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in AccessManager in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to perform arbitrary file deletion and arbitrary command execution via the deletion of an audit rule.

CVSS 3.1 · 8.8 High EPSS 1.2% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor Session Smart Router
CVE-2026-103402

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

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 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor Session Smart Router
CVE-2026-103401

Session Smart Router and Session Smart Conductor: An attacker can overwrite arbitrary files as root

An Improper Link Resolution Before File Access ('Link Following') vulnerability in the unauthenticated web server handlers in Juniper Networks Session Smart Router and Session Smart Conductor allows a local unprivileged user to overwrite arbitrary files as root via unauthenticated API endpoints. This vulnerability can be exploited on Mist-managed routers and on unmanaged Routers that have not yet been onboarded to a Conductor. Routers already managed by Conductor are not affected.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor Session Smart Router
CVE-2026-106079

Session Smart Router and Session Smart Conductor: Improper validation of a field causes privilege escalation when updating the YANG configuration

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in AccessManager in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with config-write privileges to achieve arbitrary command execution as root in the YANG configuration.

CVSS 3.1 · 8.8 High EPSS 1.2% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor Session Smart Router
CVE-2026-103400

Session Smart Router and Session Smart Conductor: Crafted directory names cause arbitrary filesystem unmounting during service cleanup

An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the ember service in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker with local access to unmount arbitrary filesystems or cause a denial of service via the creation of specially named directories and a service restart.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor Session Smart Router
CVE-2026-103390

Session Smart Router and Session Smart Conductor: A malformed HTTP URI causes a service crash during HTTP application identification

An Out-of-Bounds Read vulnerability in the HttpParser component in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to cause a denial of service via a specially crafted HTTP request.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor Session Smart Router
CVE-2025-21589

Session Smart Router, Session Smart Conductor, WAN Assurance Router: API Authentication Bypass vulnerability

An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router may allows a network-based attacker to bypass authentication and take administrative control of the device. This issue affects Session Smart Router:  * from 5.6.7 before 5.6.17,  * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts,  * from 6.2 before 6.2.8-lts,  * from 6.3 before 6.3.3-r2;  This issue affects Session Smart Conductor:  * from 5.6.7 before 5.6.17,  * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts,  * from 6.2 before 6.2.8-lts,  * from 6.3 before 6.3.3-r2;  This issue affects WAN Assurance Managed Routers:  * from 5.6.7 before 5.6.17,  * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts,  * from 6.2 before 6.2.8-lts,  * from 6.3 before 6.3.3-r2.

CVSS 4.0 · 9.3 Critical EPSS 1.5% KEV · Not listed
Vendors
Juniper
Products
Session Smart Conductor Session Smart Router Wan Assurance Managed Router