Switch
Juniper Networks

Juniper Networks Juniper EX4300-24T

- The Juniper Networks Juniper EX4300-24T is a 24-port Gigabit Ethernet switch designed for enterprise networks, offering high-performance and reliability.

Juniper Networks Juniper EX4300-24T

Specifications

OS
Junos OS
LAN
10/100/1000 Ethernet
PoE
No
QoS
Yes
USB
Yes
Layer
L2/L3
Ports
24x RJ-45 1GbE

Potential Threats

1
Critical
10
High
12
Medium
0
Low

23 Known CVEs

1 critical vulnerability found — immediate patching required.
Disable all unused ports. Enable port security and 802.1X authentication. Use separate VLANs for management traffic.

Default IP

192.168.1.1

Default admin panel address for Juniper Networks Juniper EX4300-24T

Default Credentials — Juniper Networks Juniper EX4300-24T

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

Known CVE Vulnerabilities (23)

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-2024-39564 2025

This is a similar, but different vulnerability than the issue reported as CVE-2024-39549. A double-free vulnerability in the routing process daemon (...

7.5
CVE-2024-39563 2024

A Command Injection vulnerability in Juniper Networks Junos Space allows an unauthenticated, network-based attacker sending a specially crafted reques...

7.3

Showing 10 of 23

FAQ

What is the default password for Juniper Networks Juniper EX4300-24T?

The most common default credentials for Juniper Networks Juniper EX4300-24T are listed in the table above. Always change these immediately after setup.

What is the default username for Juniper Networks Juniper EX4300-24T?

The default username for Juniper Networks Juniper EX4300-24T 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 EX4300-24T?

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 EX4300-24T 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.

Does Juniper Networks Juniper EX4300-24T have known security vulnerabilities?

Juniper Networks Juniper EX4300-24T has 23 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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