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Juniper Networks Releases 28 Security Bulletins to Address Critical Vulnerabilities

Juniper

Business Honor
18 July, 2025

Juniper issues urgent patches for critical vulnerabilities across its products and operating systems.

Juniper Networks released 28 security bulletins this week, which patch critical vulnerabilities in several appliances and operating systems. The patches are intended to address a vast array of security vulnerabilities that would enable attackers to run malicious code, evade security controls, or tamper with sensitive information. IT administrators are advised to verify if their devices are vulnerable and implement the required updates in time to protect their systems. The vulnerabilities found by Juniper cut across its products, which include Junos OS, Junos OS Evolved, and some Juniper appliances like the ACX , MX, SRX series, and Juniper Apstra. The security threats range in severity, and they include some that have been rated as critical while others are rated as high or medium risk.

Some of the most critical vulnerabilities include Juniper Security Director and Junos OS/Junos OS Evolved. The first critical flaw enables unauthenticated attackers to reach sensitive resources via the web UI of Juniper Security Director. The vulnerability can facilitate attacks that enable attackers to manipulate data and have unauthorized access to devices that are managed by the appliance. The second critical flaw impacts communication between Radius clients and Radius servers running on Junos OS, which makes it possible for attackers to bypass the authentication process and gain unauthorized access to the network.

Although the vulnerabilities are being labeled as critical, most of the others are also high-risk in nature, and IT administrators are recommended to take prompt action to refresh their systems. Juniper's newest security bulletins follow by mere months the company's release of 22 security updates in April, suggesting an ongoing commitment to enhancing security and shielding users from possible cyberattacks.