---
id: CVE-2026-86565
title: A flaw was found in DPDK lib/vhost
summary: >-
  A flaw was found in DPDK lib/vhost. A guest can desynchronize virtqueue size
  from inflight descriptor table size, causing an out-of-bounds write in the
  host vhost process.
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-787
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:13:37.910'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86565'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-86565'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2529683'
    label: secalert@redhat.com
tags:
  - nvd
ingestedAt: '2026-10-14T17:44:53.679Z'
---

## Overview

A flaw was found in DPDK lib/vhost. A guest can desynchronize virtqueue size from inflight descriptor table size, causing an out-of-bounds write in the host vhost process.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.