CVE-2026-86562
Publication date 15 October 2026
Last updated 15 October 2026
Ubuntu priority
Description
A flaw was found in DPDK lib/vhost. A TOCTOU double-fetch of control-queue descriptors allows a heap buffer overflow with attacker-controlled content in the VDUSE control-queue handler.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| dpdk | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
7.8 · High
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-86562
- https://bugs.dpdk.org/show_bug.cgi?id=2003
- https://bugs.dpdk.org/show_bug.cgi?id=2021
- https://www.openwall.com/lists/oss-security/2026/10/14/7
- https://access.redhat.com/security/cve/CVE-2026-86562
- https://bugzilla.redhat.com/show_bug.cgi?id=2529667
- https://git.dpdk.org/dpdk/commit/?id=6ec17781346e0fe4b566b6bf8f79be71f87c10e4