Junos OS and Junos OS Evolved: Execution of crafted CLI commands allows for arbitrary shell injection as root (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.69 % · percentile 53 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
An OS Command Injection vulnerability in the CLI processing of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker executing specific, crafted CLI commands to inject arbitrary shell commands as root, leading to a complete compromise of the system. Certain 'set system' commands, when executed with crafted arguments, are not properly sanitized, allowing for arbitrary shell injection. These shell commands are executed as root, potentially allowing for complete control of the vulnerable system. This issue affects: Junos OS: * all versions before 22.4R3-S8, * from 23.2 before 23.2R2-S5, * from 23.4 before 23.4R2-S7, * from 24.2 before 24.2R2-S2, * from 24.4 before 24.4R2, * from 25.2 before 25.2R2; Junos OS Evolved: * all versions before 22.4R3-S8-EVO, * from 23.2 before 23.2R2-S5-EVO, * from 23.4 before 23.4R2-S7-EVO, * from 24.2 before 24.2R2-S2-EVO, * from 24.4 before 24.4R2-EVO, * from 25.2 before 25.2R1-S1-EVO, 25.2R2-EVO.
Weaknesses (CWE)
- CWE-78 — Improper Neutralization of Special Elements used in an OS Command
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | juniper |
| CVSS 4.0 | HIGH 8.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M/U:Amber | juniper |
| CVSS 4.0 | HIGH 8.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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:Y/R:A/V:C/RE:M/U:Amber | NVD · sirt@juniper.net (Secondary) |
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · sirt@juniper.net (Secondary) |
European references
- ENISA EUVD · EUVD-2026-21207
- GCVE · GCVE-0-2026-33791
CERT-FR advisories
- CERTFR-2026-AVI-0408 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*< 22.4cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:22.4:r3-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.2:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:23.4:r2-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:*- +58 more
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | affected 0 < 22.4R3-S8 ; affected 23.2 < 23.2R2-S5 ; affected 23.4 < 23.4R2-S7 ; affected 24.2 < 24.2R2-S2 ; affected 24.4 < 24.4R2 ; affected 25.2 < 25.2R2 |
| Juniper Networks · Junos OS Evolved | affected 0 < 22.4R3-S8-EVO ; affected 23.2 < 23.2R2-S5-EVO ; affected 23.4 < 23.4R2-S7-EVO ; affected 24.2 < 24.2R2-S2-EVO ; affected 24.4 < 24.4R2-EVO ; affected 25.2 < 25.2R1-S1-EVO, 25.2R2-EVO |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |