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    "cveMetadata": {
        "cveId": "CVE-2025-27462",
        "assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
        "state": "PUBLISHED",
        "assignerShortName": "XEN",
        "dateReserved": "2025-02-26T09:16:54.461Z",
        "datePublished": "2026-07-09T14:27:03.467Z",
        "dateUpdated": "2026-07-09T16:06:58.873Z"
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                "orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
                "shortName": "XEN",
                "dateUpdated": "2026-07-09T14:27:03.467Z"
            },
            "title": "WinPVDrivers: Excessive permissions on user-exposed devices",
            "datePublic": "2025-05-27T12:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-276",
                            "description": "CWE-276 Incorrect default permissions",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-233",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-233 Privilege Escalation"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Xen",
                    "product": "Windows PV drivers",
                    "platforms": [
                        "Windows"
                    ],
                    "versions": [
                        {
                            "status": "affected",
                            "version": "all"
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                    ],
                    "defaultStatus": "unaffected"
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]\n\n\nThe Windows PV drivers expose various facilities to userspace.  Several\nof these have no security descriptor, and are therefore fully accessible\nto unprivileged users.  These are:\n\n  1. XenCons,  CVE-2025-27462\n  2. XenIface, CVE-2025-27463\n  3. XenBus,   CVE-2025-27464",
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                            "value": "[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]<br><pre>The Windows PV drivers expose various facilities to userspace.  Several\nof these have no security descriptor, and are therefore fully accessible\nto unprivileged users.  These are:\n\n  1. XenCons,  CVE-2025-27462\n  2. XenIface, CVE-2025-27463\n  3. XenBus,   CVE-2025-27464</pre>"
                        }
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            ],
            "references": [
                {
                    "url": "https://xenbits.xen.org/xsa/advisory-468.html"
                }
            ],
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                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "HIGH",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "CRITICAL",
                        "baseScore": 9.4,
                        "vectorString": "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"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "This issue was discovered by Tu Dinh of Vates",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
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                "engine": "Vulnogram 1.0.2"
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                                "timestamp": "2026-07-09T16:06:53.503103Z",
                                "id": "CVE-2025-27462",
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                                        "Exploitation": "none"
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                                        "Technical Impact": "total"
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