CVE-2012-5525: Xen

Medium severity, CVSS 4.7. EPSS: 1.6% chance of exploitation in the next 30 days.

The get_page_from_gfn hypercall function in Xen 4.2 allows local PV guest OS administrators to cause a denial of service (crash) via a crafted GFN that triggers a buffer over-read.

Affected products

• Xen Xen: version 4.2.0 only

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