HomeCVE-2021-47890

CVE-2021-47890

HIGH
8.5CVSS
Published: 2026-01-23
Updated: 2026-01-26
AI Analysis

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.

CVSS Metrics

Vector
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
local
Complexity
low
Privileges
low
User Action
none
Confidentiality
undefined
Integrity
undefined
Availability
undefined
Weaknesses
CWE-428

Metadata

Primary Vendor
UNKNOWN
Published
1/23/2026
Last Modified
1/26/2026
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

No affected products information available.

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Executive Intelligence Brief

CVE-CVE-2021-47890 | HIGH Severity | CVEDatabase.com | CVEDatabase.com