CVE-2026-86561: Red Hat Fast Datapath For Rhel 10

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

A flaw was found in DPDK lib/vhost. Memory size is not adequately validated before mmap during vhost memory-region setup, which can lead to a host crash or memory corruption.

Affected products

• Red Hat Fast Datapath For Rhel 10
• Red Hat Fast Datapath For Rhel 8
• Red Hat Fast Datapath For Rhel 9
• Red Hat Red Hat Enterprise Linux 10
• Red Hat Red Hat Enterprise Linux 8
• Red Hat Red Hat Enterprise Linux 9
• Red Hat Red Hat Openshift Container Platform 4
• Red Hat Red Hat Openstack Platform 13 Queens

Published 2026-10-14. Last modified 2026-10-15.