CVE-2025-21590

KEV

Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability

Vendor / Project: Juniper
Product: Junos OS
Date added: Mar 13, 2025
Due date: Apr 3, 2025
Known ransomware use: Unknown
CWEs: CWE-653

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