{"cveID":"CVE-2025-21590","vendorProject":"Juniper","product":"Junos OS","vulnerabilityName":"Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability","dateAdded":"2025-03-13","shortDescription":"Juniper Junos OS contains an improper isolation or compartmentalization vulnerability. This vulnerability could allows a local attacker with high privileges to inject arbitrary code.","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","dueDate":"2025-04-03","knownRansomwareCampaignUse":"Unknown","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","cwes":["CWE-653"],"year":2025,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2025-21590","technique":"T1068","technique_name_at_mapping":"Exploitation for Privilege Escalation","mapping_type":"exploitation_technique","capability_group":"code_injection","comments":"This vulnerability allows for an adversary to escalate their privileges within the system, allowing them to execute arbitrary code.","references":["https://www.intertecsystems.com/threat-report-and-advisories/vulnerability/high-risk-junos-os-vulnerability-exposes-networks-to-privilege-escalation-risks/"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2025-21590","technique":"T1059","technique_name_at_mapping":"Command and Scripting Interpreter","mapping_type":"primary_impact","capability_group":"code_injection","comments":"This vulnerability allows for an adversary to escalate their privileges within the system, allowing them to execute arbitrary code.","references":["https://www.intertecsystems.com/threat-report-and-advisories/vulnerability/high-risk-junos-os-vulnerability-exposes-networks-to-privilege-escalation-risks/"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1059","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Command and Scripting Interpreter","name_at_mapping":"Command and Scripting Interpreter","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":95,"has_detection_strategy":true},{"id":"T1068","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Exploitation for Privilege Escalation","name_at_mapping":"Exploitation for Privilege Escalation","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":31,"has_detection_strategy":true}],"mapping_types":["exploitation_technique","primary_impact"],"has_exploitation_technique":true,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"full","sigma_rules_tagged_cve":[],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-23 05:47 UTC","_attack_version":"19.2"}