Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability
Medium CVSS 4.4 Listed in CISA KEV
Summary
Juniper Junos OS contains an improper isolation or compartmentalization vulnerability. This vulnerability could allows a local attacker with high privileges to inject arbitrary code.
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- Juniper:Junos OS
- :
Sources
- CISA KEV DATABASE
- NVD DATABASE
Original Links
- https://nvd.nist.gov/vuln/detail/CVE-2025-21590 advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog kev
- https://supportportal.juniper.net/s/article/2025-03-Out-of-Cycle-Security-Bulletin-Junos-OS-A-local-attacker-with-shell-access-can-execute-arbitrary-code-CVE-2025-21590?language=en_US reference
- https://cloud.google.com/blog/topics/threat-intelligence/china-nexus-espionage-targets-juniper-routers Third Party Advisory
- https://supportportal.juniper.net/JSA93446 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21590 US Government Resource
Timeline
- kev_added CISA KEV
- kev_ingest CISA KEV
- nvd_ingest NVD