CVE-2026-81579

An untrusted Pointer Dereference can be exploited to escalate privileges by an unprivileged user on Windows

HIGH
8.8
CVSS Score
Published: August 27, 2026 at 07:42 AM UTC
Updated: September 3, 2026 at 06:04 PM UTC
1 product affected across 1 vendorWibukey

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Severity
HIGH8.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 6.71
Affected range stops below 6.71, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHwibu
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-123

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