CVE-2025-43715 – NSIS Local Privilege Escalation Vulnerability

The following table lists the changes that have been made to the
CVE-2025-43715 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Apr. 17, 2025

    Action Type Old Value New Value
    Added Description Nullsoft Scriptable Install System (NSIS) before 3.11 on Windows allows local users to escalate privileges to SYSTEM during an installation, because the temporary plugins directory is created under %WINDIR%temp and unprivileged users can place a crafted executable file by winning a race condition. This occurs because EW_CREATEDIR does not always set the CreateRestrictedDirectory error flag.
    Added CVSS V3.1 AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
    Added CWE CWE-754
    Added Reference https://nsis.sourceforge.io/Docs/AppendixF.html#v3.11-rl
    Added Reference https://sourceforge.net/p/nsis/bugs/1315/
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