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Vulnerability record · CVE-2018-3990 · published 5 February 2019

CVE-2018-3990: Wibukey memory buffer overflow vulnerability

Wibu · Wibukey

An exploitable pool corruption vulnerability exists in the 0x8200E804 IOCTL handler functionality of WIBU-SYSTEMS WibuKey.sys Version 6.40 (Build 2400). A specially crafted IRP request can cause a buffer overflow, resulting in kernel memory corruption and, potentially, privilege escalation. An attacker can send an IRP request to trigger this vulnerability.

7.8 CVSS 3.0 High EPSS 0.64% · top 51.6% CWE-119 · Memory buffer overflow
7.8CVSS 3.0 base score, v2 7.2
0.64%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An exploitable pool corruption vulnerability exists in the 0x8200E804 IOCTL handler functionality of WIBU-SYSTEMS WibuKey.sys Version 6.40 (Build 2400). A specially crafted IRP request can cause a buffer overflow, resulting in kernel memory corruption and, potentially, privilege escalation. An attacker can send an IRP request to trigger this vulnerability.

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/107005 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-760124.pdf Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-844562.pdf Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-902727.pdf
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0658 ExploitThird Party Advisory
http://www.securityfocus.com/bid/107005 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-760124.pdf Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-844562.pdf Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-902727.pdf
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0658 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-3990), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.