High severity8.1NVD Advisory· Published Apr 17, 2025· Updated Apr 15, 2026

CVE-2025-43715

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Nsis/NSIS: Nullsoft Scriptable Install Systemllm-create
Range: < 3.11

Patches

Vulnerability mechanics

References

nsis.sourceforge.io/Docs/AppendixF.htmlnvd
sourceforge.net/p/nsis/bugs/1315/nvd

News mentions

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