What is CVE-2026-86561?

CVE-2026-86561 is a medium-severity vulnerability in Red Hat Fast Datapath For Rhel 10, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-10-14.

How severe is CVE-2026-86561?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Red Hat Fast Datapath For Rhel 10

CVE-2026-86561

A flaw was found in DPDK lib/vhost. Memory size is not adequately validated before mmap during vhost memory-region setup, which can lead to a host crash or memory corruption.

Published 2026-10-14 · last modified 2026-10-14.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/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)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

access.redhat.com/security/cve/CVE-2026-86561 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)

Frequently asked questions

What is CVE-2026-86561?: CVE-2026-86561 is a medium-severity vulnerability in Red Hat Fast Datapath For Rhel 10, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-10-14.
How severe is CVE-2026-86561?: Medium severity. CVSS v3 base score is 6.5 out of 10.