Firewall
Juniper Networks

Juniper Networks SRX300

Juniper SRX300 Services Gateway for small branch offices.

Juniper Networks SRX300

Specifications

RAM
4 GB
VPN
IPSec, SSL
Ports
6x Gigabit + 2x SFP
Throughput
1 Gbps

Potential Threats

2
Critical
75
High
38
Medium
0
Low

116 Known CVEs

2 critical vulnerabilities found — immediate patching required.
75 high-severity vulnerabilities — patch as soon as possible.
This device has 116 known vulnerabilities — consider replacing with a newer model.
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 SRX300

Default Credentials — Juniper Networks SRX300

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

Known CVE Vulnerabilities (116)

Sort:
CVE-2026-21920 2026

An Unchecked Return Value vulnerability in the DNS module of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker...

7.5
CVE-2026-21918 2026

A Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network...

7.5
CVE-2026-21917 2026

An Improper Validation of Syntactic Correctness of Input vulnerability in the Web-Filtering module of Juniper Networks Junos OS on SRX Series allows a...

7.5
CVE-2026-21914 2026

An Improper Locking vulnerability in the GTP plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to ca...

7.5
CVE-2026-21906 2026

An Improper Handling of Exceptional Conditions vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows a...

7.5
CVE-2026-21905 2026

A Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the SIP application layer gateway (ALG) of Juniper Networks Junos OS on SRX...

7.5
CVE-2025-60007 2026

A NULL Pointer Dereference vulnerability in the chassis daemon (chassisd) of Juniper Networks Junos OS on MX, SRX and EX Series allows a local attacke...

5.5
CVE-2025-59968 2025

A Missing Authorization vulnerability in the Juniper Networks Junos Space Security Director allows an unauthenticated network-based attacker to read o...

8.6
CVE-2025-52960 2025

A Buffer Copy without Checking Size of Input vulnerability in the Session Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Serie...

5.9
CVE-2025-6549 2025

An Incorrect Authorization vulnerability in the web server of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacke...

6.5

Showing 10 of 116

FAQ

What is the default password for Juniper Networks SRX300?

The most common default credentials for Juniper Networks SRX300 are listed in the table above. Always change these immediately after setup.

What is the default username for Juniper Networks SRX300?

The default username for Juniper Networks SRX300 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 SRX300?

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 SRX300 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 SRX300 have known security vulnerabilities?

Juniper Networks SRX300 has 116 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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