VULNERABILITY INTELLIGENCE
CVE-2012-4538
CVSS score4.9 MEDIUM
EPSS probability0.44%
CISA KEVNot currently listed
Published2012-11-24
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:N/I:N/A:C
Description
The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service (hypervisor crash) via unspecified vectors.
Weakness classification
- CWE-20: Improper Input Validation