CVE-2021-47890
High
Description
LogonExpert 8.1 contains an unquoted service path vulnerability in the LogonExpertSvc service running with LocalSystem privileges. Attackers can exploit the unquoted path to place malicious executables in intermediate directories, potentially gaining elevated system access during service startup.
SeverityHigh
CVSS7.8
Exploit probability—
ProductLogonExpert
PublishedJan 23, 2026
First seenJan 23, 2026
Weakness typeCWE-428CWE-428
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Softros Systems LogonExpert | 8.1 | — |
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