CVE-2026-57028: CWE-923 Improper Restriction of Communication Channel to Intended Endpoints in Juniper Networks Junos OS Evolved
CVE-2026-57028 is a vulnerability in Juniper Networks Junos OS Evolved that allows an unauthenticated network attacker to cause license exhaustion. The issue arises because a process intended for internal device communication is incorrectly initialized and exposed via an open network port, enabling unauthorized access to license management. This affects all Junos OS Evolved versions prior to 23.2R2-EVO. The vulnerability has a high severity rating with a CVSS score of 7.3.
AI Analysis
Technical Summary
The vulnerability CVE-2026-57028 in Juniper Networks Junos OS Evolved involves improper restriction of a communication channel to intended endpoints (CWE-923). Due to incorrect initialization, a process that should only communicate internally is accessible over the network through an open port. This exposure allows an unauthenticated attacker to access license management functions and cause license exhaustion. The issue affects all versions before 23.2R2-EVO. No official patch or remediation level has been published yet.
Potential Impact
An unauthenticated network attacker can exploit this vulnerability to access license management functionality, leading to license exhaustion. This could disrupt normal device operation by preventing legitimate license usage or renewal, potentially impacting service availability or device functionality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, monitor Juniper Networks advisories for updates. Until a fix is available, restrict network access to management interfaces and limit exposure of Junos OS Evolved devices to untrusted networks where possible.
CVE-2026-57028: CWE-923 Improper Restriction of Communication Channel to Intended Endpoints in Juniper Networks Junos OS Evolved
Description
CVE-2026-57028 is a vulnerability in Juniper Networks Junos OS Evolved that allows an unauthenticated network attacker to cause license exhaustion. The issue arises because a process intended for internal device communication is incorrectly initialized and exposed via an open network port, enabling unauthorized access to license management. This affects all Junos OS Evolved versions prior to 23.2R2-EVO. The vulnerability has a high severity rating with a CVSS score of 7.3.
CVSS v3.1
Score 7.3high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-57028 in Juniper Networks Junos OS Evolved involves improper restriction of a communication channel to intended endpoints (CWE-923). Due to incorrect initialization, a process that should only communicate internally is accessible over the network through an open port. This exposure allows an unauthenticated attacker to access license management functions and cause license exhaustion. The issue affects all versions before 23.2R2-EVO. No official patch or remediation level has been published yet.
Potential Impact
An unauthenticated network attacker can exploit this vulnerability to access license management functionality, leading to license exhaustion. This could disrupt normal device operation by preventing legitimate license usage or renewal, potentially impacting service availability or device functionality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, monitor Juniper Networks advisories for updates. Until a fix is available, restrict network access to management interfaces and limit exposure of Junos OS Evolved devices to untrusted networks where possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- juniper
- Date Reserved
- 2026-06-23T16:27:00.248Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a50171668715ace431ea205
Added to database: 07/09/2026, 21:48:06 UTC
Last enriched: 07/09/2026, 22:02:38 UTC
Last updated: 07/10/2026, 03:55:57 UTC
Views: 9
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