CVE-2017-15594: Xen

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service (hypervisor crash) or gain privileges because IDT settings are mishandled during CPU hotplugging.

Affected products

• Xen Xen: up to and including 4.9.0

Published 2017-10-18. Last modified 2026-06-17.