{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-81579", "assignerOrgId": "2fc02b1f-71e7-4514-a878-169626f68903", "state": "PUBLISHED", "assignerShortName": "wibu", "dateReserved": "2026-08-27T07:34:49.654Z", "datePublished": "2026-08-27T07:42:28.626Z", "dateUpdated": "2026-08-27T08:49:17.321Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://www.wibu.com/products/wibukey.html", "defaultStatus": "unaffected", "product": "wibukey", "vendor": "wibu-systems-ag", "versions": [{"lessThan": "6.71", "status": "affected", "version": "0", "versionType": "custom"}]}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wibu-systems-ag:wibukey:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.71", "versionStartIncluding": "0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "OR"}], "credits": [{"lang": "en", "type": "reporter", "value": "\uae40\uba85\uaddc working with Trend Micro Zero Day Initiative"}], "datePublic": "2025-11-12T09:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "In WibuKey for Windows before version 6.71, an untrusted pointer dereference in the WibuKey2_64.sys kernel driver for 64-bit Windows allows an attacker to exploit a write-what-where primitive, enabling local privilege escalation. This can be leveraged to execute arbitrary code, run an administrator shell, or gain full control over the system."}], "value": "In WibuKey for Windows before version 6.71, an untrusted pointer dereference in the WibuKey2_64.sys kernel driver for 64-bit Windows allows an attacker to exploit a write-what-where primitive, enabling local privilege escalation. This can be leveraged to execute arbitrary code, run an administrator shell, or gain full control over the system."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-123", "description": "CWE-123 Write-what-where condition", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "2fc02b1f-71e7-4514-a878-169626f68903", "shortName": "wibu", "dateUpdated": "2026-08-27T08:49:17.321Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-100031.pdf"}], "source": {"discovery": "EXTERNAL"}, "title": "An untrusted Pointer Dereference can be exploited to escalate privileges by an unprivileged user on Windows", "x_generator": {"engine": "Vulnogram 1.0.0-beta"}}}}

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{"affected": [{"affectedData": [{"collectionURL": "https://www.wibu.com/products/wibukey.html", "defaultStatus": "unaffected", "product": "wibukey", "vendor": "wibu-systems-ag", "versions": [{"lessThan": "6.71", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "2fc02b1f-71e7-4514-a878-169626f68903"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In WibuKey for Windows before version 6.71, an untrusted pointer dereference in the WibuKey2_64.sys kernel driver for 64-bit Windows allows an attacker to exploit a write-what-where primitive, enabling local privilege escalation. This can be leveraged to execute arbitrary code, run an administrator shell, or gain full control over the system."}], "id": "CVE-2026-81579", "lastModified": "2026-08-27T10:16:40.457", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "2fc02b1f-71e7-4514-a878-169626f68903", "type": "Secondary"}]}, "published": "2026-08-27T10:16:40.457", "references": [{"source": "2fc02b1f-71e7-4514-a878-169626f68903", "url": "https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-100031.pdf"}], "sourceIdentifier": "2fc02b1f-71e7-4514-a878-169626f68903", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-123"}], "source": "2fc02b1f-71e7-4514-a878-169626f68903", "type": "Secondary"}]}

{}

{"created": "2026-08-27T10:45:17.062970+00:00", "title": "Untrusted Pointer Dereference in WibuKey2_64.sys Enables Local Privilege Escalation", "updated": "2026-08-27T10:45:17.062976+00:00", "vendors": []}