CVE-2016-5242: Xen

Medium severity, CVSS 5.6. EPSS: 0.3% chance of exploitation in the next 30 days.

The p2m_teardown function in arch/arm/p2m.c in Xen 4.4.x through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (NULL pointer dereference and host OS crash) by creating concurrent domains and holding references to them, related to VMID exhaustion.

Affected products

• Xen Xen: version 4.4.0 only; version 4.4.1 only; version 4.4.2 only; version 4.4.3 only; version 4.4.4 only; version 4.5.0 only; …

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