Juniper · Junos OS
CVE-2025-21590
Junos OS: An local attacker with shell access can execute arbitrary code
De quoi s'agit-il
An Improper Isolation or Compartmentalization vulnerability in the kernel of Juniper Networks Junos OS allows a local attacker with high privileges to compromise the integrity of the device.
A local attacker with access to the shell is able to inject arbitrary code which can compromise an affected device.
This issue is not exploitable from the Junos CLI.
This issue affects Junos OS:
* All versions before 21.2R3-S9,
* 21.4 versions before 21.4R3-S10,
* 22.2 versions before 22.2R3-S6,
* 22.4 versions before 22.4R3-S6,
* 23.2 versions before 23.2R2-S3,
* 23.4 versions before 23.4R2-S4,
* 24.2 versions before 24.2R1-S2, 24.2R2.
CISA: Juniper Junos OS contains an improper isolation or compartmentalization vulnerability. This vulnerability could allows a local attacker with high privileges to inject arbitrary code.
Que faire
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Échéance pour les agences fédérales américaines : 3 avril 2025
Autres failles exploitées chez Juniper
| Ajouté | Faille | Produit | Gravité | Risque d'attaque |
|---|---|---|---|---|
| 13 nov. 2023 | EX Series PHP External Variable Modification | Junos OS | Moyenne 5,3 | 90% |
| 13 nov. 2023 | EX Series and SRX Series PHP External Variable Modification | Junos OS | Critique 9,8 | 95% |
| 13 nov. 2023 | SRX Series Missing Authentication for Critical Function | Junos OS | Moyenne 5,3 | 93% |
| 13 nov. 2023 | EX Series Missing Authentication for Critical Function | Junos OS | Moyenne 5,3 | 83% |
| 13 nov. 2023 | SRX Series Missing Authentication for Critical Function | Junos OS | Moyenne 5,3 | 1,1% |
| 25 mars 2022 | Path Traversal | Junos OS | Élevé 8,8 | 4,9% |
| 2 oct. 2025 | Improper Authentication | ScreenOS | Critique 9,8 | 61% |
Sources : Known Exploited Vulnerabilities (CISA, domaine public), CVE records (cve.org) et EPSS (FIRST). Le risque d'attaque est l'estimation EPSS qu'une personne tente d'exploiter la faille dans les 30 prochains jours.