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CVE-2026-57028

29
FAUCET Score

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.

First published: Jul 9, 2026Last modified: Jul 9, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 23.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
23.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos_os_evolved:23.2:-:*:*:*:*:*:*
23.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos_os_evolved:23.2:r1:*:*:*:*:*:*
23.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s1:*:*:*:*:*:*
23.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

6.9MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:X/RE:M/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 0th percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

junipervendor investigatingvia vendor_rss
View patch

Vendor Advisories (1)

juniperjuniper:ka0Dp000000VpDbIAK

2026-07 Security Bulletin: Junos OS Evolved: A port which has been inadvertently exposed can be reached by an attacker (CVE-2026-57028)

Jul 8, 2026

References

supportportal.juniper.net / JSA110088
Vendor Advisory