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CVE-2026-81581 User input in WibuKey is used (without proper sanitization) to compute the address of a pointer, which can be exploited to let the user point to any storage, to which Windows responds with a denial of service.

🗓️ 27 Aug 2026 07:46:30Reported by wibuType 
cvelist
 cvelist
🔗 www.cve.org👁 2 Views

Improper pointer sanitization in WibuKey64.sys up to 6.70 enabling DoS, possible RCE.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-81581
27 Aug 202607:46
cve
nvd
NVD
CVE-2026-81581
27 Aug 202610:16
nvd
[
  {
    "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"
      }
    ]
  }
]

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