CVE-2026-86565
Received
Received - Intake
DPDK vhost Out-of-Bounds Write in Virtqueue Handling
Vulnerability report for CVE-2026-86565, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-14
Last updated on: 2026-10-14
Assigner: redhat-SADP
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Red | Hat | Fast Datapath for RHEL 10 * |
| Red | Hat | Fast Datapath for RHEL 8 * |
| Red | Hat | Fast Datapath for RHEL 9 * |
| Red | Hat | Red Hat Enterprise Linux 10 * |
| Red | Hat | Red Hat Enterprise Linux 8 * |
| Red | Hat | Red Hat Enterprise Linux 9 * |
| Red | Hat | Red Hat OpenShift Container Platform 4 * |
| Red | Hat | Red Hat OpenStack Platform 13 (Queens) * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
