Vulnerability · Published Sep 8, 2026 · Assigned by redhat
CVE-2026-86564Dpdk: dpdk: missing length validation before reading command_data in virtio-net control queue handler
Low 3.3
In plain English
A low-severity out-of-bounds read in Fast Datapath for RHEL 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.1%top 96.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | dpdk | no fix listed | DEBIAN-CVE-2026-86564 |
| Debian:13 | dpdk | 24.11.8-0+deb13u1 | DEBIAN-CVE-2026-86564 |
| Debian:14 | dpdk | 25.11.4-1 | DEBIAN-CVE-2026-86564 |
| Ubuntu:22.04:LTS | dpdk | no fix listed | UBUNTU-CVE-2026-86564 |
| Ubuntu:24.04:LTS | dpdk | no fix listed | UBUNTU-CVE-2026-86564 |
| Ubuntu:26.04:LTS | dpdk | no fix listed | UBUNTU-CVE-2026-86564 |
| Ubuntu:26.10 | dpdk | no fix listed | UBUNTU-CVE-2026-86564 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
References
- https://access.redhat.com/security/cve/CVE-2026-86564 vdb-entry, x_refsource_REDHAT
- RHBZ#2529682 issue-tracking, x_refsource_REDHAT