Junos OS (SRX firewalls)
CVE-2025-30650: Privileged local user can gain access to a Linux-based FPC as root
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.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Junos OS 0 | 22.4R3-S8 or later |
| Junos OS 23.2 | 23.2R2-S6 or later |
| Junos OS 23.4 | 23.4R2-S6 or later |
| Junos OS 24.2 | 24.2R2-S3 or later |
| Junos OS 24.4 | 24.4R2 or later |
| Junos OS 25.2 | 25.2R2 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Workarounds
There are no known workarounds for this issue.
Exploitation
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.