Skip to content
OpenAdvisories
Critical · 9.4 CVE-2025-27462 EUVD-2025-210443GHSA-8q95-g4m7-2crp

WinPVDrivers: Excessive permissions on user-exposed devices

Published Jul 9, 2026 · Updated Jul 9, 2026 · Assigned by XEN

Description

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

The Windows PV drivers expose various facilities to userspace. Several
of these have no security descriptor, and are therefore fully accessible
to unprivileged users. These are:

1. XenCons, CVE-2025-27462
2. XenIface, CVE-2025-27463
3. XenBus, CVE-2025-27464

Affected products

VendorProductAffectedFixed
Xen Windows PV drivers all —

Advisories 1

References