CVE-2025-27463
WinPVDrivers: Excessive permissions on user-exposed devices
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
[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
| CWE | CWE-276 |
| Vendor | xen |
| Product | windows pv drivers |
| Published | Jul 9, 2026 |
| Last Updated | Jul 9, 2026 |
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Affected Versions
Xen / Windows PV drivers
all
References
Credits
This issue was discovered by Tu Dinh of Vates