CVE-2026-86565
Dpdk: dpdk: guest can desynchronize virtqueue size from inflight descriptor table size, causing out-of-bounds write
- State
- Published
- Severity
- 8.2 High
- Published
- Oct 14, 2026
- Updated
- Nov 2, 2026
- Reserved
- Sep 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.2 High | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H | redhat |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
Fast Datapath for RHEL 10Red Hat | |
Fast Datapath for RHEL 10Red Hat | |
Fast Datapath for RHEL 10Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 8Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Fast Datapath for RHEL 9Red Hat | |
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenStack Platform 13 (Queens)Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-86565vdb-entry
- RHBZ#2529683issue-tracking
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