CVE-2026-102185 Denial of service in Junos OS
Remote attackers can cause a denial of service in Juniper Junos OS routing daemon when EVPN multihoming preference-based DF election is enabled.
- 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-2026-102185?
CVE-2026-102185 is a high-severity denial of service vulnerability in Juniper Networks Junos OS, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote network attacker to cause a denial of service via EVPN multihoming with preference-based designated-forwarder election.
Weakness: CWE-835
Which versions are affected by CVE-2026-102185?
How do I fix CVE-2026-102185?
No fix has been published for CVE-2026-102185 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-102185 being exploited?
There is no known exploitation of CVE-2026-102185 in the wild and no public exploit code.
Sources
Also known as GHSA-5j85-mv7g-m6r3.