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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | < 22.4R3-S8; >= 23.2, < 23.2R2-S6; >= 23.4, < 23.4R2-S6; >= 24.2, < 24.2R2-S3; >= 24.4, < 24.4R2; >= 25.2, < 25.2R2 |
References
- https://github.com/orangecertcc/security-research/security/advisories/GHSA-fwhc-gh5m-v8fqThird Party Advisory
- https://kb.juniper.net/JSA107863Vendor Advisory
Timeline
- Published
- Apr 8, 2026
- Last modified
- Aug 26, 2026
- NVD status
- Analyzed