CVE-2026-102085 Junos OS Evolved: A port which has been inadvertently exposed can be reached by an attacker
An attacker can access an internal process via an exposed port, causing information disclosure and increased CPU usage on Juniper network devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102085?
CVE-2026-102085 is a medium-severity vulnerability in Juniper Networks Junos OS Evolved, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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 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.
Weakness: CWE-923
Which versions are affected by CVE-2026-102085?
How do I fix CVE-2026-102085?
No fix has been published for CVE-2026-102085 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-102085 being exploited?
There is no known exploitation of CVE-2026-102085 in the wild and no public exploit code.
Sources
Also known as GHSA-2wjw-7p23-hg8g.