CVE-2012-3498: Citrix Xenserver

Medium severity, CVSS 5.6. EPSS: 0.4% chance of exploitation in the next 30 days.

PHYSDEVOP_map_pirq in Xen 4.1 and 4.2 and Citrix XenServer 6.0.2 and earlier allows local HVM guest OS kernels to cause a denial of service (host crash) and possibly read hypervisor or guest memory via vectors related to a missing range check of map->index.

Affected products

• Citrix Xenserver: up to and including 6.0.2
• Xen Xen: version 4.1.0 only; version 4.2.0 only

Published 2012-11-23. Last modified 2026-06-16.