CVE-2026-86562

A flaw was found in DPDK lib/vhost. A TOCTOU double-fetch of control-queue descriptors allows a heap buffer overflow with attacker-controlled content in the VDUSE control-queue handler.

Score

CVSS 3.1 7.8 High

Status

Awaiting Analysis - secalert@redhat.com

Published

2026-10-14

Last modified

2026-10-20

Weaknesses

CWE-362

Affected products

• Enterprise Linux (Redhat)
• Openshift (Redhat)
• Openstack (Redhat)

References

• https://access.redhat.com/security/cve/CVE-2026-86562
• https://bugzilla.redhat.com/show_bug.cgi?id=2529667
• https://git.dpdk.org/dpdk/commit/?id=6ec17781346e0fe4b566b6bf8f79be71f87c10e4