CVE-2021-47810 WibuKey Runtime 6.51 - 'WkSvW32.exe' Unquoted Service Path

High 8.5 Published 15 Jan 2026 Updated 5 Mar 2026

Local attackers can execute arbitrary code and escalate privileges by exploiting an unquoted service path in WibuKey Runtime.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-47810?

CVE-2021-47810 is a high-severity vulnerability in WibuKey Runtime, published on 15 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

WibuKey Runtime 6.51 contains an unquoted service path vulnerability in the WkSvW32.exe service that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted path in 'C:\PROGRAM FILES (X86)\WIBUKEY\SERVER\WkSvW32.exe' to inject malicious executables and escalate privileges.

Weakness: CWE-428

Which versions are affected by CVE-2021-47810?

It affects 1 product.

Products include Wibu Wibukey.

How do I fix CVE-2021-47810?

No fix has been published for CVE-2021-47810 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-47810 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47810 exists.

Sources

Also known as GHSA-9243-8h4w-g3wg.