CVE-2025-30650
Junos OS: 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.
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Junos OS: 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.
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.
- Record
CVE-2025-30650- CVSS 4.0
- 8.4 High
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/AU:N/R:A/V:C/RE:M/U:Amber - CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
EUVDEUVD-2025-209320
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.
- Record
EUVD-2025-209320- CVSS 4.0
- 8.4 High
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/AU:N/R:A/V:C/RE:M/U:Amber - Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-30650- CVSS 4.0
- 8.4 High
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:A/V:C/RE:M/U:Amber - CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-30650 is a high vulnerability (CVSS 8.4) in Juniper Junos, published April 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.