CVE-2021-47890

LogonExpert 8.1 - 'LogonExpertSvc' Unquoted Service Path

CVSS 8.5 HIGHEPSS 0.1%CWE-428

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 8.5EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

23 jan 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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.

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

Produtos afetados

Softros Systems · LogonExpert

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Referências

https://download.logonexpert.com/LogonExpertSetup64.msi https://www.exploit-db.com/exploits/49586 https://www.softros.com/https://www.vulncheck.com/advisories/logonexpert-logonexpertsvc-unquoted-service-path