CVE-2025-30650 Junos OS: Privileged local user can gain access to a Linux-based FPC as root
A privileged local user can gain root access to Linux-based line cards in Junos OS due to missing authentication for critical functions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-30650?
CVE-2025-30650 is a high-severity missing authorization vulnerability in Juniper Junos, published on 8 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A Missing Authentication for Critical Function vulnerability in command processing of Juniper Networks Junos OS allows a privileged local attacker to gain access to Linux-based line cards as root.
This issue affects systems running Junos OS using Linux-based line cards. Affected line cards include: * MPC7, MPC8, MPC9, MPC10, MPC11 * LC2101, LC2103 * LC480, LC4800, LC9600 * MX304 (built-in FPC) * MX-SPC3 * SRX5K-SPC3 * EX9200-40XS
* FPC3-PTX-U2, FPC3-PTX-U3 * FPC3-SFF-PTX * LC1101, LC1102, LC1104, LC1105
This issue affects Junos OS:
* all versions before 22.4R3-S8, * from 23.2 before 23.2R2-S6, * from 23.4 before 23.4R2-S6, * from 24.2 before 24.2R2-S3, * from 24.4 before 24.4R2, * from 25.2 before 25.2R2.
Weakness: CWE-306
Which versions are affected by CVE-2025-30650?
It affects 1 product.
Products include Juniper Junos.
How do I fix CVE-2025-30650?
No fix has been published for CVE-2025-30650 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-30650 being exploited?
There is no known exploitation of CVE-2025-30650 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos
- CVE-2023-36845 Juniper Junos OS EX Series and SRX Series PHP External Variable Modification
- CVE-2020-1631 Juniper Junos OS Path Traversal
- CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization
- CVE-2023-36851 Juniper Junos OS SRX Series Missing Authentication for Critical Function
- CVE-2023-36844 Juniper Junos OS EX Series PHP External Variable Modification