VULNERABILITY INTELLIGENCE

CVE-2020-3979

CVSS score7.8 HIGH
EPSS probability0.38%
CISA KEVNot currently listed
Published2020-09-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Weakness classification

  • CWE-427: Uncontrolled Search Path Element

Primary references