CVE-2023-37378: Nullsoft Scriptable Install System

Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days.

Nullsoft Scriptable Install System (NSIS) before 3.09 mishandles access control for an uninstaller directory.

Affected products

• Nullsoft Nullsoft Scriptable Install System: up to and including 3.09

Published 2023-07-03. Last modified 2026-06-17.