Vulnerability in Red Hat Fast Datapath For Rhel 10
CVE-2026-86562
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.
Vulnerability class: Race Condition
Published .
CVSS v3 metric
CVSS v3 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.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-86562 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- git.dpdk.org/dpdk/commit/
Frequently asked questions
- What is CVE-2026-86562?
- CVE-2026-86562 is a high-severity vulnerability in Red Hat Fast Datapath For Rhel 10, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.8/10. Published 2026-10-14.
- How severe is CVE-2026-86562?
- High severity. CVSS v3 base score is 7.8 out of 10.