CVE-2026-86563

Dpdk: dpdk: double offset bug in vhost log mapping calculation

HIGH

7.8

CVSS Score

Published: October 14, 2026 at 04:08 PM UTC

Updated: October 20, 2026 at 02:39 AM UTC

4 products affected across 1 vendorEnterprise LinuxOpenShift Container PlatformOpenStack Platform

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Enterprise Linux · Red Hatrpm

90%

All versions

Fast Datapath · Red Hatrpm

90%

All versions

OpenShift Container Platform · Red Hatcontainer

90%

All versions

OpenStack Platform · Red Hatrpm

90%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

VDB Entryx_refsource_REDHAT

Source: cverecord

https://access.redhat.com/security/cve/CVE-2026-86563

Issue Trackingx_refsource_REDHAT

Source: cverecord

https://bugzilla.redhat.com/show_bug.cgi?id=2529668

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHredhat

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-131

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