CVE-2020-3979

HIGH

InstallBuilder for Qt Windows < 20.7.0 - Uncontrolled Search Path Element via Plugin Loading

Title source: llm
STIX 2.1

Description

InstallBuilder for Qt Windows (versions prior to 20.7.0) installers look for plugins at a predictable location at initialization time, writable by non-admin users. While those plugins are not required, they are loaded if present, which could allow an attacker to plant a malicious library which could result in code execution with the security scope of the installer.

References (1)

Core 1

Scores

CVSS v3 7.8
EPSS 0.0038
EPSS Percentile 29.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-427
Status published
Products (1)
installbuilder/installbuilder < 20.7.0
Published Sep 18, 2020
Tracked Since Feb 18, 2026