CVE-2016-4963: Xen

Medium severity, CVSS 4.7. EPSS: 0.3% chance of exploitation in the next 30 days.

The libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore.

Affected products

• Xen Xen: version 4.0.0 only; version 4.0.1 only; version 4.0.2 only; version 4.0.3 only; version 4.0.4 only; version 4.1.0 only; …

Published 2016-06-07. Last modified 2026-06-17.