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Vulnerable Software

Vulnerability Details CVE-2025-21590

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.027
EPSS Ranking 85.5%
CVSS Severity
CVSS v3 Score 4.4
Proposed Action
Juniper Junos OS contains an improper isolation or compartmentalization vulnerability. This vulnerability could allows a local attacker with high privileges to inject arbitrary code.
Ransomware Campaign
Unknown
Products affected by CVE-2025-21590
  • Juniper » Junos » Version: 11.4
    cpe:2.3:o:juniper:junos:11.4
  • Juniper » Junos » Version: 12.1
    cpe:2.3:o:juniper:junos:12.1
  • Juniper » Junos » Version: 12.1x44
    cpe:2.3:o:juniper:junos:12.1x44
  • Juniper » Junos » Version: 12.1x45
    cpe:2.3:o:juniper:junos:12.1x45
  • Juniper » Junos » Version: 12.1x46
    cpe:2.3:o:juniper:junos:12.1x46
  • Juniper » Junos » Version: 12.1x46-d76
    cpe:2.3:o:juniper:junos:12.1x46-d76
  • Juniper » Junos » Version: 12.1x47
    cpe:2.3:o:juniper:junos:12.1x47
  • Juniper » Junos » Version: 12.2
    cpe:2.3:o:juniper:junos:12.2
  • Juniper » Junos » Version: 12.3
    cpe:2.3:o:juniper:junos:12.3
  • Juniper » Junos » Version: 12.3x48
    cpe:2.3:o:juniper:junos:12.3x48
  • Juniper » Junos » Version: 12.3x48-d70
    cpe:2.3:o:juniper:junos:12.3x48-d70
  • Juniper » Junos » Version: 12.3x50
    cpe:2.3:o:juniper:junos:12.3x50
  • Juniper » Junos » Version: 13.1
    cpe:2.3:o:juniper:junos:13.1
  • Juniper » Junos » Version: 13.2
    cpe:2.3:o:juniper:junos:13.2
  • Juniper » Junos » Version: 13.2x51
    cpe:2.3:o:juniper:junos:13.2x51
  • Juniper » Junos » Version: 13.2x52
    cpe:2.3:o:juniper:junos:13.2x52
  • Juniper » Junos » Version: 13.3
    cpe:2.3:o:juniper:junos:13.3
  • Juniper » Junos » Version: 14.1
    cpe:2.3:o:juniper:junos:14.1
  • Juniper » Junos » Version: 14.1x51
    cpe:2.3:o:juniper:junos:14.1x51
  • Juniper » Junos » Version: 14.1x53
    cpe:2.3:o:juniper:junos:14.1x53
  • Juniper » Junos » Version: 14.1x55
    cpe:2.3:o:juniper:junos:14.1x55
  • Juniper » Junos » Version: 14.2
    cpe:2.3:o:juniper:junos:14.2
  • Juniper » Junos » Version: 15.1
    cpe:2.3:o:juniper:junos:15.1
  • Juniper » Junos » Version: 15.1x49
    cpe:2.3:o:juniper:junos:15.1x49
  • Juniper » Junos » Version: 15.1x49-d140
    cpe:2.3:o:juniper:junos:15.1x49-d140
  • Juniper » Junos » Version: 15.1x53
    cpe:2.3:o:juniper:junos:15.1x53
  • Juniper » Junos » Version: 15.1x54
    cpe:2.3:o:juniper:junos:15.1x54
  • Juniper » Junos » Version: 16.1
    cpe:2.3:o:juniper:junos:16.1
  • Juniper » Junos » Version: 16.1x65
    cpe:2.3:o:juniper:junos:16.1x65
  • Juniper » Junos » Version: 16.2
    cpe:2.3:o:juniper:junos:16.2
  • Juniper » Junos » Version: 17.1
    cpe:2.3:o:juniper:junos:17.1
  • Juniper » Junos » Version: 17.2
    cpe:2.3:o:juniper:junos:17.2
  • Juniper » Junos » Version: 17.2x75
    cpe:2.3:o:juniper:junos:17.2x75
  • Juniper » Junos » Version: 17.3
    cpe:2.3:o:juniper:junos:17.3
  • Juniper » Junos » Version: 17.4
    cpe:2.3:o:juniper:junos:17.4
  • Juniper » Junos » Version: 17.4r2
    cpe:2.3:o:juniper:junos:17.4r2
  • Juniper » Junos » Version: 18.1
    cpe:2.3:o:juniper:junos:18.1
  • Juniper » Junos » Version: 18.1r2
    cpe:2.3:o:juniper:junos:18.1r2
  • Juniper » Junos » Version: 18.1x75
    cpe:2.3:o:juniper:junos:18.1x75
  • Juniper » Junos » Version: 18.2
    cpe:2.3:o:juniper:junos:18.2
  • Juniper » Junos » Version: 18.2r1
    cpe:2.3:o:juniper:junos:18.2r1
  • Juniper » Junos » Version: 18.2x75
    cpe:2.3:o:juniper:junos:18.2x75
  • Juniper » Junos » Version: 18.3
    cpe:2.3:o:juniper:junos:18.3
  • Juniper » Junos » Version: 18.4
    cpe:2.3:o:juniper:junos:18.4
  • Juniper » Junos » Version: 19.1
    cpe:2.3:o:juniper:junos:19.1
  • Juniper » Junos » Version: 19.2
    cpe:2.3:o:juniper:junos:19.2
  • Juniper » Junos » Version: 19.3
    cpe:2.3:o:juniper:junos:19.3
  • Juniper » Junos » Version: 19.4
    cpe:2.3:o:juniper:junos:19.4
  • Juniper » Junos » Version: 20.1
    cpe:2.3:o:juniper:junos:20.1
  • Juniper » Junos » Version: 20.2
    cpe:2.3:o:juniper:junos:20.2
  • Juniper » Junos » Version: 20.3
    cpe:2.3:o:juniper:junos:20.3
  • Juniper » Junos » Version: 20.4
    cpe:2.3:o:juniper:junos:20.4
  • Juniper » Junos » Version: 21.1
    cpe:2.3:o:juniper:junos:21.1
  • Juniper » Junos » Version: 21.2
    cpe:2.3:o:juniper:junos:21.2
  • Juniper » Junos » Version: 21.4
    cpe:2.3:o:juniper:junos:21.4
  • Juniper » Junos » Version: 22.2
    cpe:2.3:o:juniper:junos:22.2
  • Juniper » Junos » Version: 22.4
    cpe:2.3:o:juniper:junos:22.4
  • Juniper » Junos » Version: 23.2
    cpe:2.3:o:juniper:junos:23.2
  • Juniper » Junos » Version: 23.4
    cpe:2.3:o:juniper:junos:23.4
  • Juniper » Junos » Version: 24.2
    cpe:2.3:o:juniper:junos:24.2
  • Juniper » Junos » Version: 5.0
    cpe:2.3:o:juniper:junos:5.0


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