CVE-2016-2271: Xen

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

VMX in Xen 4.6.x and earlier, when using an Intel or Cyrix CPU, allows local HVM guest users to cause a denial of service (guest crash) via vectors related to a non-canonical RIP.

Affected products

• Xen Xen: version 4.6.0 only; version 4.6.1 only

Published 2016-02-19. Last modified 2026-06-17.