What’s Vulnerable › Vulnerabilities
CVE-2026-81579: An untrusted Pointer Dereference can be exploited to escalate privileges by an unprivileged user on Windows
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-27 · updated 2026-09-03
- Weakness: CWE-123
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.
Affected products
- wibu-systems-ag wibukey: before 6.71 — fixed in 6.71
How to fix
Upgrade to a fixed version: wibu-systems-ag wibukey 6.71. Check the vendor advisory for mitigations.
In the news
References
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