CVE-2017-10923: Xen

Medium severity, CVSS 6.5. EPSS: 1.8% chance of exploitation in the next 30 days.

Xen through 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.

Affected products

• Xen Xen: version 4.6.0 only; version 4.6.1 only; version 4.6.2 only; version 4.6.4 only; version 4.6.5 only; version 4.7.1 only; …

Published 2017-07-05. Last modified 2026-06-17.