Uncontrolled search path in VMware InstallBuilder
Priority LOW 34CWE-427Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-427.
Summary
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.
Why it matters now
EPSS 0.00376 31st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | VMware InstallBuilder | All InstallBuilder for Qt versions prior to version 20.7.0 | — | No fix listed | CNA |
- VMware InstallBuilder Vendor— Affected All InstallBuilder for Qt versions prior to version 20.7.0 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:installbuilder:installbuilder:*:*:*:*:*:qt:*:* | before 20.7.0 | Vulnerable | Installbuilder |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:installbuilder:installbuilder:*:*:*:*:*:qt:*:* Versions before 20.7.0 Vulnerable ·Installbuilder
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3979
- 2026-10-03 Alias added: GHSA-6495-758p-crj2
References
More Installbuilder vulnerabilities
- TI-2022-13613 Uncontrolled search path in VMware InstallBuilder CVSS 3.1HIGH 7.3
Sources
- CVE-2020-3979 · CVE Program
- CVE-2020-3979 · NVD
- FIRST EPSS
- GHSA-6495-758p-crj2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences