VULNERABILITY INTELLIGENCE

CVE-2022-42335

CVSS score7.8 HIGH
EPSS probability0.26%
CISA KEVNot currently listed
Published2023-04-25
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.

Weakness classification

  • nvd@nist.gov: CWE-476

Primary references