CVE-2026-86565

Dpdk: dpdk: guest can desynchronize virtqueue size from inflight descriptor table size, causing out-of-bounds write

Published Oct 14, 2026 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Description
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

Vendor Workaround

No mitigation is currently available.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10.3
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:8 cpe:/a:redhat:enterprise_linux:8::appstream
cpe:/a:redhat:enterprise_linux:8::crb
References
Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:8 cpe:/a:redhat:enterprise_linux:8
Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:9 cpe:/a:redhat:enterprise_linux:9::appstream
References
Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:10.2
References
Type Values Removed Values Added
First Time appeared Dpdk
Dpdk dpdk
Red Hat
Red Hat enterprise Linux
Redhat fast Datapath
Redhat openshift Container Platform
Redhat openstack Platform
Vendors & Products Dpdk
Dpdk dpdk
Red Hat
Red Hat enterprise Linux
Redhat fast Datapath
Redhat openshift Container Platform
Redhat openstack Platform
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Dpdk: dpdk: guest can desynchronize virtqueue size from inflight descriptor table size, causing out-of-bounds write
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Redhat openstack
Weaknesses CWE-787
CPEs cpe:/a:redhat:openshift:4
cpe:/a:redhat:openstack:13
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:10::fastdatapath
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:8::fastdatapath
cpe:/o:redhat:enterprise_linux:9
cpe:/o:redhat:enterprise_linux:9::fastdatapath
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
Redhat openstack
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 11, 2026, 1:50 PM
Reserved
Sep 8, 2026, 2:56 AM
Status
Awaiting Analysis
Published
Oct 14, 2026, 5:20 PM
Modified
Nov 11, 2026, 2:17 PM
Severity
Important
Public date
Oct 14, 2026, 3:00 PM