What is CVE-2026-86564?
A flaw was found in DPDK lib/vhost. Missing length validation before reading command_data in the virtio-net control-queue handler can cause an out-of-bounds read and a host process crash.
The record classifies CVE-2026-86564 under weakness class CWE-125. Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction. 7 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 27 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 3.3 — LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - EPSS (FIRST)
- 0.1% probability of exploitation in the next 30 days, higher than 1.0% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 1.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-09-08, last modified 2026-09-09
Is CVE-2026-86564 being exploited?
It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.
Affected products and versions
- Red Hat: Fast Datapath for RHEL 10, Fast Datapath for RHEL 8, Fast Datapath for RHEL 9, Enterprise Linux 10, Enterprise Linux 8, Enterprise Linux 9, OpenShift Container Platform 4
How to fix CVE-2026-86564
No vendor patch reference has been recorded for CVE-2026-86564 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-86564
No threat campaign in the Threadlinqs corpus currently references CVE-2026-86564, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.
Sources
Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on .