CVE-2025-21590MEDIUM 4.4CISA KEVEPSS p73.6%
CVE-2025-21590Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability
Juniper / Junos OS
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.
Scoring
| CVSS 3.1 | 4.4 (MEDIUM) |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N |
| EPSS | 1.66% probability of exploitation · percentile 73.6% · 2026-06-18T12:00:27Z |
| Published | 2025-03-12 |
| Last modified | 2025-10-24 |
CISA KEV entry
Added to KEV: 2025-03-13
Underlying weaknesses· 1
References
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Improper Isolation or Compartmentalizationcwe-653 | 0% | live |
(incoming)1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| KEVEntry | Juniper Junos OS Improper Isolation or Compartmentalization Vulnerabilitykev-cve-2025-21590 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.