CVE-2026-86562 in Red Hat

Summary

by MITRE • 10/14/2026

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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

• Responsible: Redhat
• Reservation: 09/08/2026
• Disclosure: 10/14/2026
• Moderation: accepted
• Entry: VDB-420133
• CPE: 20261014
• CWE: CWE-367 (confirmed)
• CVSS: 7.8 (CNA)
• EPSS: 0.00000
• KEV: no
• Activities: very low
• Sector: Hospital, Energy, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-86562
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-86562
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-86562/