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Vulnerability record · CVE-2021-47810 · published 16 January 2026

CVE-2021-47810: Wibukey unquoted search path vulnerability

Wibu · Wibukey

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.

8.5 CVSS 4.0 High EPSS 0.23% · top 87.2% CWE-428 · Unquoted search path
8.5CVSS 4.0 base score
0.23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

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

References

LinkTags
https://www.exploit-db.com/exploits/49999 Exploit
https://www.vulncheck.com/advisories/wibukey-runtime-wksvwexe-unquoted-service-path Third Party Advisory
https://www.wibu.com Product
https://www.wibu.com/us/support/user/downloads-user-software.html Product
https://www.exploit-db.com/exploits/49999 Exploit

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Related vulnerabilities

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

9.8CVE-2018-3991Wibukey out-of-bounds write vulnerabilityAn exploitable heap overflow vulnerability exists in the WkbProgramLow function of WibuKey Network server management, version 6.40.2402.500. A specia…EPSS 34%7.8CVE-2024-45181Wibukey out-of-bounds write vulnerabilityAn issue was discovered in WibuKey64.sys in WIBU-SYSTEMS WibuKey before v6.70 and fixed in v.6.70. An improper bounds check allows crafted packets to…EPSS 0.22%7.8CVE-2018-3990Wibukey memory buffer overflow vulnerabilityAn exploitable pool corruption vulnerability exists in the 0x8200E804 IOCTL handler functionality of WIBU-SYSTEMS WibuKey.sys Version 6.40 (Build 240…EPSS 0.64%5.5CVE-2024-45182Wibukey out-of-bounds read vulnerabilityAn issue was discovered in WibuKey64.sys in WIBU-SYSTEMS WibuKey before v6.70 and fixed in v.6.70 An improper bounds check allows specially crafted p…EPSS 0.20%5.5CVE-2018-3989Wibukey use of uninitialized resource vulnerabilityAn exploitable kernel memory disclosure vulnerability exists in the 0x8200E804 IOCTL handler functionality of WIBU-SYSTEMS WibuKey.sys Version 6.40 (…EPSS 0.57%

Source: NIST National Vulnerability Database (record CVE-2021-47810), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.