Due to a wrong 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 a device being inadvertently exposed and increased CPU cycles spent processing ingress packets.
This issue affects Junos OS Evolved:
* All versions before 23.2R2-S7.7-EVO;
* 23.4 versions before 23.4R2-S8.11-EVO;
* 24.2 versions before 24.2R2-S5.6-EVO;
* 24.4 versions before 24.4R2-S4-EVO;
* 25.2 version before 25.2R2-S1-EVO;
* 25.4 versions before 25.4R1-S1-EVO.
Please note that this issue is similar to but not identical CVE-2026-33803.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juniper Networks | Junos OS Evolved | unaffected |
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Vendor Solution
The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 23.2R2-S7.7-EVO, 23.4R2-S8.11-EVO, 24.2R2-S5.6-EVO, 24.4R2-S4-EVO, 25.2R2-S1-EVO, 25.4R1-S1-EVO, 26.2R1-EVO, and all subsequent releases. Note: For Junos OS Evolved releases 23.2-EVO, 23.4-EVO, and 24.2-EVO, specific respins have been referenced. Previously published versions of these releases have been rebuilt to resolve the security vulnerabilities identified in this advisory.
Vendor Workaround
There are no known workarounds for this issue. Please ensure that your control plane protection only explicitly permits access to ports intended to be reachable and only from authorized endpoints. All other traffic destined to the control plane should be disallowed.
Tracking
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No advisories yet.
| Link | Providers |
|---|---|
| https://supportportal.juniper.net/JSA112171 |
|
Wed, 14 Oct 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 a limited information disclosure and availability impact to the device. Due to a wrong 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 a device being inadvertently exposed and increased CPU cycles spent processing ingress packets. This issue affects Junos OS Evolved: * All versions before 23.2R2-S7.7-EVO; * 23.4 versions before 23.4R2-S8.11-EVO; * 24.2 versions before 24.2R2-S5.6-EVO; * 24.4 versions before 24.4R2-S4-EVO; * 25.2 version before 25.2R2-S1-EVO; * 25.4 versions before 25.4R1-S1-EVO. Please note that this issue is similar to but not identical CVE-2026-33803. | |
| Title | Junos OS Evolved: A port which has been inadvertently exposed can be reached by an attacker | |
| Weaknesses | CWE-923 | |
| References |
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| Metrics |
cvssV3_1
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: juniper
Published:
Updated: 2026-10-14T20:46:20.247Z
Reserved: 2026-09-28T17:37:38.548Z
Link: CVE-2026-102085
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-14T17:18:04.477
Modified: 2026-10-14T17:18:04.477
Link: CVE-2026-102085
Redhat
No data.
OpenCVE Enrichment
No data.
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CWE-923
Improper Restriction of Communication Channel to Intended Endpoints