CVE-2012-5511: Xen

Medium severity, CVSS 4.7. EPSS: 0.4% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the dirty video RAM tracking functionality in Xen 3.4 through 4.1 allows local HVM guest OS administrators to cause a denial of service (crash) via a large bitmap image.

Affected products

• Xen Xen: version 3.4.0 only; version 3.4.1 only; version 3.4.2 only; version 3.4.3 only; version 3.4.4 only; version 4.0.0 only; …

Published 2012-12-13. Last modified 2026-06-16.