High severity8.8NVD Advisory· Published Oct 14, 2026

CVE-2026-103994

Description

A Heap-based Buffer Overflow vulnerability in the VXLAN Gateway Daemon (vgd) of Juniper Networks Junos OS allows a malicious or compromised SDN-controller to cause a complete outage of the OVSDB control plane and possibly remote code execution.

Affected products

Juniper Networks/Junosllm-fuzzy
Juniper Networks/VXLAN Gateway Daemonllm-create

Patches

Vulnerability mechanics

References

supportportal.juniper.net/JSA112188nvd

News mentions

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