Home

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

PUBLISHED Reserved 2025-02-26 | Published 2026-07-09 | Updated 2026-07-09 | Assigner XEN




CRITICAL: 9.4CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem types

CWE-276 Incorrect default permissions

Product status

Default status
unaffected

all
affected

Credits

This issue was discovered by Tu Dinh of Vates finder

References

xenbits.xen.org/xsa/advisory-468.html

cve.org (CVE-2025-27463)

nvd.nist.gov (CVE-2025-27463)

Download JSON