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  4. Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability

Known Exploited Vulnerabilities CVE-2025-21590

Juniper Junos OS contains an improper isolation or compartmentalization vulnerability. This vulnerability could allows a local attacker with high privileges to inject arbitrary code.

Mappings

Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name Notes
CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability exploitation_technique T1068 Exploitation for Privilege Escalation
Comments
This vulnerability allows for an adversary to escalate their privileges within the system, allowing them to execute arbitrary code.
References
  1. https://www.intertecsystems.com/threat-report-and-advisories/vulnerability/high-risk-junos-os-vulnerability-exposes-networks-to-privilege-escalation-risks/
CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability primary_impact T1059 Command and Scripting Interpreter
Comments
This vulnerability allows for an adversary to escalate their privileges within the system, allowing them to execute arbitrary code.
References
  1. https://www.intertecsystems.com/threat-report-and-advisories/vulnerability/high-risk-junos-os-vulnerability-exposes-networks-to-privilege-escalation-risks/