CVE-2011-1166: Xen

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Xen, possibly before 4.0.2, allows local 64-bit PV guests to cause a denial of service (host crash) by specifying user mode execution without user-mode pagetables.

Affected products

• Xen Xen: up to and including 4.0.1; version 3.0.2 only; version 3.0.3 only; version 3.0.4 only; version 3.1.3 only; version 3.1.4 only; …

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