CVE-2021-47890

HIGH

7.8

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.17.8

SeveridadeHIGH

Vetor CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado1/23/2026

Ultima modificacao1/26/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-428

Referencias

https://download.logonexpert.com/LogonExpertSetup64.msi(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/49586(disclosure@vulncheck.com)

https://www.softros.com/(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/logonexpert-logonexpertsvc-unquoted-service-path(disclosure@vulncheck.com)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.