CVE-2025-27464 - Vulnerability Details - OpenCVE

[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

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

No data.

References

Link	Providers
https://xenbits.xen.org/xsa/advisory-468.html

History

Thu, 09 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Thu, 09 Jul 2026 15:45:00 +0000

Type	Values Removed	Values Added
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
Title		WinPVDrivers: Excessive permissions on user-exposed devices
Weaknesses		CWE-276
References		https://xenbits.xen.org/xsa/advisory-468.html
Metrics		cvssV4_0 `{'score': 9.4, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}`

MITRE

Status: PUBLISHED

Assigner: XEN

Published: 2026-07-09T14:35:38.440Z

Updated: 2026-07-09T16:07:40.763Z

Reserved: 2025-02-26T09:16:54.461Z

Link: CVE-2025-27464

Vulnrichment

Updated: 2026-07-09T16:07:38.195Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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