🛡️ CVE-2025-21590
🟡 CVSS 4.4 — Medium ✅ No Known Exploit CWE-653 NVD
4.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An Improper Isolation or Compartmentalization vulnerability in the kernel of Juniper Networks Junos OS allows a local attacker with high privileges to compromise the integrity of the device. A local attacker with access to the shell is able to inject arbitrary code which can compromise an affected device. This issue is not exploitable from the Junos CLI. This issue affects Junos OS:  * All versions before 21.2R3-S9, * 21.4 versions before 21.4R3-S10,  * 22.2 versions before 22.2R3-S6,  * 22.4 versions before 22.4R3-S6,  * 23.2 versions before 23.2R2-S3,  * 23.4 versions before 23.4R2-S4, * 24.2 versions before 24.2R1-S2, 24.2R2.

Details

Severity MEDIUM
CVSS Score 4.4
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CWE CWE-653
Public Exploit ✅ No
Source NVD
Published 2025-03-12
Updated 2026-06-02
Modified 2025-10-24
Fix URL N/A

Affected Packages

Software From version Fixed in
junos

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