Quick answers
- Is CVE-2026-86565 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-86565 being exploited in the wild.
- How severe is CVE-2026-86565?
- High severity, with a CVSS score of 8.2, published 14 October 2026.
- Which products and versions are affected?
- DPDK <UNKNOWN>.
- Is there a fix for CVE-2026-86565?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-86565 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-86565?
- Check whether you run DPDK at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A flaw in DPDK's lib/vhost component allows a malicious guest to desynchronize virtqueue size from the inflight descriptor table size, triggering an out-of-bounds write in the host vhost process. This requires guest-level access with a vhost-user-blk or vhost-user-scsi device configured with the inflight feature. The vulnerability affects the host hypervisor process and can lead to information disclosure, code execution, or denial of service.
Affected products
- DPDK DPDK <UNKNOWN>
Timeline
- 2026-10-14: disclosed