Vulnerability · Published Jul 9, 2026 · Assigned by juniper

CVE-2026-57028Junos OS Evolved: A port which has been inadvertently exposed can be reached by an attacker

High 7.3

In plain English

A high-severity security flaw in Junos OS Evolved from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.3%top 77.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Juniper Networks	Junos OS Evolved	0 – before 23.2R2-EVO

Weakness: CWE-923 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

https://supportportal.juniper.net/JSA110088 vendor-advisory