CVE-2026-81579

HighCVSS 8.8/10Last modified Sep 3, 2026

Description

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

CVSS 3.1 8.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-123

Affected software

Vendor	Product	Versions
wibu-systems-ag	wibukey	< 6.71

References

https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-100031.pdf

Timeline

Published: Aug 27, 2026
Last modified: Sep 3, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-81585.3The Signed Video Framework contained a buffer overflow issue which could lead the application using this framework to crash. The issue exc CVE-2026-815818.8Improper validation of memory boundaries in WibuKey64.sys of WibuKey up to 6.70 for Windows can be exploited by an attacker by setting the p CVE-2026-815835.4The My Login WordPress plugin before 7.2.0 does not enforce the network's registration setting when processing site signups on multisite in CVE-2026-815848.1An improper neutralization of special elements used in an SQL command vulnerability in the User API in Synology DiskStation Manager (DSM) be CVE-2026-81597.5multiparty@4.2.3 and lower versions are vulnerable to denial of service via regular expression backtracking in the Content-Disposition filen CVE-2026-81617.5multiparty@4.2.3 and lower versions are vulnerable to denial of service via uncaught exception. By sending a multipart/form-data request wit CVE-2026-81627.5multiparty@4.2.3 and lower versions are vulnerable to denial of service via uncaught exception. By sending a multipart/form-data request wit CVE-2026-816238.8IBM Guardium Data Protection 12.2 could allow an authenticated user to execute arbitrary commands with low user privileges on the system due CVE-2026-816247.5Undertow is a flexible performant web server used in JBoss EAP and WildFly. A flaw was found in how Undertow handles WebSocket connections. CVE-2026-816258.8A remote attacker with user privileges may use a malicious or compromised NASL vulnerability test (VT) on the affected products to trigger a CVE-2026-816268.6IBM Guardium Data Protection 12.2 is vulnerable to a SQL injection vulnerability in the Load Balancer Groups component. An unauthenticated u CVE-2026-816278.2A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the opti