Firewall
Juniper Networks

Juniper Networks Juniper SRX4100

- The Juniper SRX4100 is a high-performance firewall device designed for small to medium-sized businesses and branch offices.

Juniper Networks Juniper SRX4100

Specifications

OS
Junos OS
IDS/IPS
Yes
RAM
16 GB
UTM
Yes
VPN
Yes
Rack
1U
Ports
8x 1GbE RJ-45, 4x 10GbE SFP+, 1x management, 1x console, 1x USB

Potential Threats

2
Critical
8
High
13
Medium
0
Low

25 Known CVEs

2 critical vulnerabilities found — immediate patching required.
Audit firewall rules and remove unused allow entries. Enable detailed logging. Restrict management access to trusted IPs only.

Default IP

192.168.1.1

Default admin panel address for Juniper Networks Juniper SRX4100

Known CVE Vulnerabilities (25)

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-2025-21605 2025

Redis is an open source, in-memory database that persists on disk. In versions starting at 2.6 and prior to 7.4.3, An unauthenticated client can cause...

7.5
CVE-2025-21601 2025

An Improper Following of Specification by Caller vulnerability in web management (J-Web, Captive Portal, 802.1X, Juniper Secure Connect (JSC) of Junip...

7.5
CVE-2025-21597 2025

An Improper Check for Unusual or Exceptional Conditions vulnerability in routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolv...

5.3
CVE-2025-21595 2025

A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evo...

6.5
CVE-2025-21591 2025

A Buffer Access with Incorrect Length Value vulnerability in the jdhcpd daemon of Juniper Networks Junos OS, when DHCP snooping is enabled, allows an...

7.4
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-2025-21606 2025

stats is a macOS system monitor in for the menu bar. The Stats application is vulnerable to a local privilege escalation due to the insecure implement...

CVE-2025-21607 2025

Vyper is a Pythonic Smart Contract Language for the EVM. When the Vyper Compiler uses the precompiles EcRecover (0x1) and Identity (0x4), the success...

7.5
CVE-2025-21598 2025

An Out-of-bounds Read vulnerability in Juniper Networks Junos OS and Junos OS Evolved's routing protocol daemon (rpd) allows an unauthenticated, netwo...

7.5

Showing 10 of 25

FAQ

What is the default password for Juniper Networks Juniper SRX4100?

The most common default credentials for Juniper Networks Juniper SRX4100 are listed in the table above. Always change these immediately after setup.

What is the default username for Juniper Networks Juniper SRX4100?

The default username for Juniper Networks Juniper SRX4100 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 SRX4100?

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 SRX4100 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 SRX4100 have known security vulnerabilities?

Juniper Networks Juniper SRX4100 has 25 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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