CVE-2026-57028: CWE-923 Improper Restriction of Communication Channel to Intended Endpoints in Juniper Networks Junos OS Evolved
An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause license exhaustion. Due to an incorrect initialization, a process which should only be able to communicate internally within the device, can be reached over the network via an open port. This leads to unauthorized access to the license management. This issue affects all Junos OS Evolved versions before 23.2R2-EVO.
AI Analysis
Technical Summary
This vulnerability (CWE-923) in Junos OS Evolved occurs due to incorrect initialization of a process intended for internal communication only. Because this process is reachable over the network through an open port, an unauthenticated attacker can access license management functions, leading to license exhaustion. The flaw affects all versions before 23.2R2-EVO. No official patch or remediation level has been confirmed yet, and no known exploits are reported in the wild.
Potential Impact
An unauthenticated attacker can exploit this vulnerability remotely to cause license exhaustion on affected devices. This may disrupt normal device operation or limit functionality dependent on licensing. The confidentiality, integrity, and availability impacts are rated low to low to low respectively by CVSS, but the overall severity is high due to the potential operational impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to management interfaces and monitor for unusual license usage patterns. Follow Juniper Networks' official advisories for updates on patches or mitigations.
CVE-2026-57028: CWE-923 Improper Restriction of Communication Channel to Intended Endpoints in Juniper Networks Junos OS Evolved
Description
An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause license exhaustion. Due to an incorrect initialization, a process which should only be able to communicate internally within the device, can be reached over the network via an open port. This leads to unauthorized access to the license management. This issue affects all Junos OS Evolved versions before 23.2R2-EVO.
CVSS v3.1
Score 7.3high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-923) in Junos OS Evolved occurs due to incorrect initialization of a process intended for internal communication only. Because this process is reachable over the network through an open port, an unauthenticated attacker can access license management functions, leading to license exhaustion. The flaw affects all versions before 23.2R2-EVO. No official patch or remediation level has been confirmed yet, and no known exploits are reported in the wild.
Potential Impact
An unauthenticated attacker can exploit this vulnerability remotely to cause license exhaustion on affected devices. This may disrupt normal device operation or limit functionality dependent on licensing. The confidentiality, integrity, and availability impacts are rated low to low to low respectively by CVSS, but the overall severity is high due to the potential operational impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to management interfaces and monitor for unusual license usage patterns. Follow Juniper Networks' official advisories for updates on patches or mitigations.
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: 07/17/2026, 09:55:12 UTC
Last updated: 08/23/2026, 22:52:12 UTC
Views: 98
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