CVE-2013-4329: Xen

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction.

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 2013-09-12. Last modified 2026-06-16.