CVE-2025-21590 — Actively Exploited: Junos OS (Juniper)
Juniper Junos OS contains an improper isolation or compartmentalization vulnerability. This vulnerability could allows a local attacker with high privileges to inject arbitrary code.
| CVE ID | CVE-2025-21590 |
|---|---|
| Vendor | Juniper |
| Product | Junos OS |
| Vulnerability name | Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability |
| Date added | 2025-03-13 |
| Remediation due | 2025-04-03 |
| Known ransomware use | Unknown |
| Required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
| Description | Juniper Junos OS contains an improper isolation or compartmentalization vulnerability. This vulnerability could allows a local attacker with high privileges to inject arbitrary code. |
| Source | CISA Known Exploited Vulnerabilities |
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