Switch
Juniper Networks

Juniper Networks Juniper QFX5100-48T

- The Juniper QFX5100-48T is a high-performance, compact switch designed for data center and campus networks.

Juniper Networks Juniper QFX5100-48T

Specifications

OS
Junos OS
QoS
Yes
USB
1x USB
Layer
L2/L3
Ports
48x RJ-45
VLANs
4094
Uplinks
4x 10GbE SFP+

Potential Threats

2
Critical
4
High
6
Medium
0
Low

17 Known CVEs

2 critical vulnerabilities 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 QFX5100-48T

Default Credentials — Juniper Networks Juniper QFX5100-48T

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

Known CVE Vulnerabilities (17)

Sort:
CVE-2025-52954 2025

A Missing Authorization vulnerability in the internal virtual routing and forwarding (VRF) of Juniper Networks Junos OS Evolved allows a local, low-pr...

7.8
CVE-2025-52953 2025

An Expected Behavior Violation vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthen...

6.5
CVE-2025-52952 2025

An Out-of-bounds Write vulnerability in the connectivity fault management (CFM) daemon of Juniper Networks Junos OS on MX Series with MPC-BUILTIN, MPC...

6.5
CVE-2025-52951 2025

A Protection Mechanism Failure vulnerability in kernel filter processing of Juniper Networks Junos OS allows an attacker sending IPv6 traffic destined...

5.8
CVE-2025-52950 2025

A Missing Authorization vulnerability in Juniper Networks Security Director allows an unauthenticated network-based attacker to read or tamper with mu...

9.6
CVE-2025-52949 2025

An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Ev...

6.5
CVE-2025-52948 2025

An Improper Handling of Exceptional Conditions vulnerability in Berkeley Packet Filter (BPF) processing of Juniper Networks Junos OS allows an attacke...

5.9
CVE-2025-52947 2025

An Improper Handling of Exceptional Conditions vulnerability in route processing of Juniper Networks Junos OS on specific end-of-life (EOL) ACX Series...

6.5
CVE-2025-52946 2025

A Use After Free vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an attac...

7.5
CVE-2025-52939 2025

Out-of-bounds Write vulnerability in dail8859 NotepadNext (src/lua/src modules). This vulnerability is associated with program files ldebug.C, lvm.C....

Showing 10 of 17

FAQ

What is the default password for Juniper Networks Juniper QFX5100-48T?

The most common default credentials for Juniper Networks Juniper QFX5100-48T are listed in the table above. Always change these immediately after setup.

What is the default username for Juniper Networks Juniper QFX5100-48T?

The default username for Juniper Networks Juniper QFX5100-48T 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 QFX5100-48T?

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 QFX5100-48T 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 QFX5100-48T have known security vulnerabilities?

Juniper Networks Juniper QFX5100-48T has 17 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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