Vulnerability Database

319,561

Total vulnerabilities in the database

CVE-2021-47890

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.

  • Published: Jan 23, 2026
  • Updated: Jan 24, 2026
  • CVE: CVE-2021-47890
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.8
  • AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWEs: