Router
Juniper Networks

Juniper Networks Juniper MX240

- The Juniper Networks Juniper MX240 is a compact, high-performance router designed for small to medium-sized businesses and branch offices.

Juniper Networks Juniper MX240

Specifications

OS
Junos OS
QoS
Yes
VPN
Yes
WAN
Ethernet
DIN Rail
Rack-mount
Layer
Layer 3
Ports
MIC, MPC, SCB, RE, power slots

Potential Threats

4
Critical
4
High
11
Medium
0
Low

19 Known CVEs

4 critical vulnerabilities found — immediate patching required.
Change the default admin password and login URL. Disable WPS and remote management. Enable WPA3 if supported.

Default IP

192.168.1.1

Default admin panel address for Juniper Networks Juniper MX240

Default Credentials — Juniper Networks Juniper MX240

Username Password Access Type Protocol Port Notes
(blank) console Console

Known CVE Vulnerabilities (19)

Sort:
CVE-2025-21589 2026

An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router may allows a network-based attacker...

9.8
CVE-2025-21588 2025

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 8.4.0-8.4.4 and 9.0.0-9...

4.9
CVE-2025-21587 2025

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported...

7.4
CVE-2025-21586 2025

Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Web Runtime SEC). Supported versions that are affected a...

5.4
CVE-2025-21585 2025

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.41, 8.4....

4.9
CVE-2025-21584 2025

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.0.0-8.0.41, 8.4.0-8.4....

4.9
CVE-2025-21583 2025

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.4.0 and 9.0.0. Easily...

4.9
CVE-2025-21590 2025

An Improper Isolation or Compartmentalization vulnerability in the kernel of Juniper Networks Junos OS allows a local attacker with high privileges to...

4.4
CVE-2024-21577 2024

ComfyUI-Ace-Nodes is vulnerable to Code Injection. The ACE_ExpressionEval node contains an eval() in its entrypoint function that accepts arbitrary us...

10.0
CVE-2024-21576 2024

ComfyUI-Bmad-Nodes is vulnerable to Code Injection. The issue stems from a validation bypass in the BuildColorRangeHSVAdvanced, FilterContour and Find...

10.0

Showing 10 of 19

FAQ

What is the default password for Juniper Networks Juniper MX240?

The most common default credentials for Juniper Networks Juniper MX240 are listed in the table above. Always change these immediately after setup.

What is the default username for Juniper Networks Juniper MX240?

The default username for Juniper Networks Juniper MX240 is typically "admin". The full list of default credentials including username, password, access type and port is shown in the table on this page.

How do I change the password on Juniper Networks Juniper MX240?

Log in to the admin panel using the default credentials listed above. Navigate to Administration → Password or System → Account settings. Enter the current password and set a new strong password. Save the changes.

How do I reset Juniper Networks Juniper MX240 to factory defaults?

Locate the Reset button (usually a small pinhole on the back/bottom of the device). Hold it for 10-30 seconds while powered on until the LEDs flash. The device will reboot with default settings.

Is it safe to leave default credentials unchanged?

No. Default credentials are publicly known and frequently exploited by automated scanners. Change the admin password immediately after first login.

What IP address do I use to log in to Juniper Networks Juniper MX240?

The default admin login address for Juniper Networks Juniper MX240 is shown in the "Default IP" field above. Most routers use 192.168.1.1 or 192.168.0.1. Open a browser on a device connected to the router and navigate to that IP.

How do I change the Wi-Fi password on Juniper Networks Juniper MX240?

Log in to the router admin panel at the default IP address. Go to Wireless or Wi-Fi settings. Find the WPA2/WPA3 passphrase field and update it. Save and reconnect your devices.

How do I secure Juniper Networks Juniper MX240 after setup?

Change the default admin password and Wi-Fi password immediately. Disable WPS (Wi-Fi Protected Setup) — it is vulnerable to brute-force attacks. Enable WPA3 encryption if supported. Turn off remote management unless needed. Keep firmware updated.

Does Juniper Networks Juniper MX240 have known security vulnerabilities?

Juniper Networks Juniper MX240 has 19 known CVE vulnerabilities documented in our database. The full list with severity ratings is shown on this page. Apply the latest firmware update from the manufacturer to address known issues.

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