Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability
Juniper — Junos OS
- Added to KEV catalog
- 13 March 2025
- Federal remediation due date
- 3 April 2025
- Weakness classification (CWE)
- CWE-653
CISA 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.
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.
Notes
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 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21590
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