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    CVE-2025-27463

    [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:Jul 9, 2026
    Last Modified:Jul 10, 2026
    EPS:Jul 9, 2026
    EPSS Score:
    CVSS Score:9.4

    Affected Products

    Vendor
    Xen
    Product
    Windows Pv Drivers

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-276 Incorrect Default Permissions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High