{"dataType": "CVE_RECORD", "dataVersion": "5.2", "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"}, "containers": {"cna": {"providerMetadata": {"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"}], "defaultStatus": "unaffected"}], "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", "supportingMedia": [{"type": "text/html", "base64": false, "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>"}]}], "references": [{"url": "https://xenbits.xen.org/xsa/advisory-468.html"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"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"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-09T16:06:53.503103Z", "id": "CVE-2025-27462", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-09T16:06:58.873Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "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"}, "containers": {"cna": {"providerMetadata": {"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"}], "defaultStatus": "unaffected"}], "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", "supportingMedia": [{"type": "text/html", "base64": false, "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>"}]}], "references": [{"url": "https://xenbits.xen.org/xsa/advisory-468.html"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"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"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-27462", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-07-09T16:06:53.503103Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-09T16:06:56.517Z"}}]}}

{}

{}

{}