CVE-2026-86566

Fixed in a distro release EPSS <1%CVSS 6.5

A flaw was found in DPDK lib/vhost. A guest with runt RX descriptors can underflow the copy length in vhost enqueue, causing a denial of service in a shared vhost backend such as OVS-DPDK.

Published 2026-10-14 · CVE record · OSV

Products: Red Hat Fast Datapath for RHEL 10, Red Hat Fast Datapath for RHEL 8, Red Hat Fast Datapath for RHEL 9, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4, Red Hat OpenStack Platform 13 (Queens)

Distro releases