CVE-2011-1936: Xen

Medium severity, CVSS 4.6. EPSS: 0.5% chance of exploitation in the next 30 days.

Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors.

Affected products

• Xen Xen: affected versions not specified

Published 2014-01-07. Last modified 2026-06-16.