CVE-2026-101934 Junos OS and Junos OS Evolved: An attacker causes Denial of Service in eventd
A local attacker can cause a Denial of Service in Juniper Junos OS by sending a crafted packet to the eventd relay service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-101934?
CVE-2026-101934 is a medium-severity memory corruption vulnerability in Juniper Networks Junos OS, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An Out-of-bounds Write vulnerability in eventd of Juniper Networks Junos OS and Junos OS Evolved allows a local attacker to cause a Denial of Service (DoS) via sending a crafted packet to the eventd relay service.
Weakness: CWE-787
Which versions are affected by CVE-2026-101934?
How do I fix CVE-2026-101934?
No fix has been published for CVE-2026-101934 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-101934 being exploited?
There is no known exploitation of CVE-2026-101934 in the wild and no public exploit code.
Sources
Also known as GHSA-h3qg-c2g9-h4f7.