CVE-2026-86563 Dpdk: dpdk: double offset bug in vhost log mapping calculation
A double-offset bug in DPDK's vhost log mapping allows incorrect memory access, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-86563?
CVE-2026-86563 is a high-severity memory corruption vulnerability in Red Hat Fast Datapath for RHEL 10, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw was found in DPDK lib/vhost. A double-offset bug in vhost log mapping calculation can lead to incorrect memory access.
Weakness: CWE-131
Which versions are affected by CVE-2026-86563?
How do I fix CVE-2026-86563?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-86563 being exploited?
There is no known exploitation of CVE-2026-86563 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-86563, GHSA-rwfr-j35x-6746, UBUNTU-CVE-2026-86563.