{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84854", "assignerOrgId": "2fc02b1f-71e7-4514-a878-169626f68903", "state": "PUBLISHED", "assignerShortName": "wibu", "dateReserved": "2026-09-02T13:16:24.763Z", "datePublished": "2026-10-06T09:59:33.393Z", "dateUpdated": "2026-10-06T09:59:33.393Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://www.wibu.com/products/wibukey.html", "defaultStatus": "unaffected", "product": "wibukey", "vendor": "wibu-systems-ag", "versions": [{"lessThan": "6.72", "status": "affected", "version": "0", "versionType": "custom"}]}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wibu-systems-ag:wibukey:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.72", "versionStartIncluding": "0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "OR"}], "credits": [{"lang": "en", "type": "finder", "value": "\uc815\uae30\ud604(haro001)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "In the WibuKey driver for Windows below Version 6.72, insufficient validation of user input when calculating the size of a kernel buffer could cause small amounts of data to be written outside the intended kernel buffer. This can lead to a system crash. Under unfavorable circumstances, adjacent kernel memory may be modified."}], "value": "In the WibuKey driver for Windows below Version 6.72, insufficient validation of user input when calculating the size of a kernel buffer could cause small amounts of data to be written outside the intended kernel buffer. This can lead to a system crash. Under\u00a0unfavorable circumstances, adjacent kernel memory may be modified."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "description": "CWE-787 Out-of-bounds write", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "2fc02b1f-71e7-4514-a878-169626f68903", "shortName": "wibu", "dateUpdated": "2026-10-06T09:59:33.393Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-100065.pdf"}], "source": {"discovery": "UNKNOWN"}, "title": "Out of Bound Write on WibuKey for 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": "6.72", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "2fc02b1f-71e7-4514-a878-169626f68903"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the WibuKey driver for Windows below Version 6.72, insufficient validation of user input when calculating the size of a kernel buffer could cause small amounts of data to be written outside the intended kernel buffer. This can lead to a system crash. Under\u00a0unfavorable circumstances, adjacent kernel memory may be modified."}], "id": "CVE-2026-84854", "lastModified": "2026-10-06T10:16:54.230", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "2fc02b1f-71e7-4514-a878-169626f68903", "type": "Secondary"}]}, "published": "2026-10-06T10:16:54.230", "references": [{"source": "2fc02b1f-71e7-4514-a878-169626f68903", "url": "https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-100065.pdf"}], "sourceIdentifier": "2fc02b1f-71e7-4514-a878-169626f68903", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "2fc02b1f-71e7-4514-a878-169626f68903", "type": "Secondary"}]}

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