CVE-2026-86563

dpdk: dpdk: Double offset bug in vhost log mapping calculation

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Severity

Important

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · October 15, 2026

Updated · November 4, 2026

Description

A flaw was found in DPDK lib/vhost. A double-offset bug in vhost log mapping calculation can lead to incorrect memory access.

Statement

A malicious guest that can control vhost-user log mapping can trigger this flaw. Red Hat has rated this as having a security impact of Important.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is currently available.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-131 · Incorrect Calculation of Buffer Size