Xen Windows PV drivers vulnerabilities
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Published CVEs affecting Xen Windows PV drivers: 3 record(s), with affected versions and fixes.
CVE-2025-27464
Critical · 9.4
CWE-276 Jul 9, 2026
WinPVDrivers: Excessive permissions on user-exposed devices
[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
CVE-2025-27463
Critical · 9.4
CWE-276 Jul 9, 2026
WinPVDrivers: Excessive permissions on user-exposed devices
[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
CVE-2025-27462
Critical · 9.4
CWE-276 Jul 9, 2026
WinPVDrivers: Excessive permissions on user-exposed devices
[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