High severity · published Jan 15, 2026
CVE-2021-47810
WibuKey Runtime 6.51 - 'WkSvW32.exe' Unquoted Service Path
7.8
CVSS
0.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WR
WibuKey Runtime · Wibu
6.51 · source: vendor
WI
Wibukey · Wibu
6.51 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-47810
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-47810
Exploit
https://www.exploit-db.com/exploits/49999
Third Party Advisory
https://www.vulncheck.com/advisories/wibukey-runtime-wksvwexe-unquoted-service-path
Product
https://www.wibu.com
Product
https://www.wibu.com/us/support/user/downloads-user-software.html