CVE-2012-5513: Xen

Medium severity, CVSS 6.9. EPSS: 0.4% chance of exploitation in the next 30 days.

The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range.

Affected products

• Xen Xen: up to and including 4.2.0; 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 2012-12-13. Last modified 2026-06-16.