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CVE

CWE

Training

CVE-2021-47890

Published: Jan 23, 2026

Modified: Jan 23, 2026

PUBLISHED

CVSS v3.1

7.8

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.

Vendor	Product	Versions
Softros Systems	LogonExpert	affected `8.1`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

ExploitDB-49586

exploit

Vendor Homepage

product

Software Download Link

product

VulnCheck Advisory: LogonExpert 8.1 - 'LogonExpertSvc' Unquoted Service Path

third-party-advisory

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