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.
Advisories

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Fixes

Solution

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Workaround

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History

Tue, 06 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 06 Oct 2026 10:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Out of Bound Write on WibuKey for Windows
First Time appeared Wibu-systems-ag
Wibu-systems-ag wibukey
Weaknesses CWE-787
CPEs cpe:2.3:a:wibu-systems-ag:wibukey:*:*:*:*:*:*:*:*
Vendors & Products Wibu-systems-ag
Wibu-systems-ag wibukey
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: wibu

Published:

Updated: 2026-10-06T11:12:24.889Z

Reserved: 2026-09-02T13:16:24.763Z

Link: CVE-2026-84854

cve-icon Vulnrichment

Updated: 2026-10-06T11:11:00.981Z

cve-icon NVD

Status : Deferred

Published: 2026-10-06T10:16:54.230

Modified: 2026-10-06T16:08:43.180

Link: CVE-2026-84854

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-06T13:45:18Z

Weaknesses