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CVE-2025-43715

Quick assessment

Affected
Nullsoft Nullsoft Scriptable Install System
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Nullsoft Scriptable Install System是Nullsoft团队的一个专业的开源系统，用于创建 Windows 安装程序。 Nullsoft Scriptable Install System 3.11之前版本存在安全漏洞，该漏洞源于临时插件目录创建不当，可能导致本地用户权限提升至SYSTEM。

CVSS 8.1 · High EPSS 0.20% · P9
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I. Basic Information for CVE-2025-43715

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对因果或异常条件的不恰当检查
Source: CVE Program / CVE List V5
Vulnerability Title
Nullsoft Scriptable Install System 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nullsoft Scriptable Install System是Nullsoft团队的一个专业的开源系统，用于创建 Windows 安装程序。 Nullsoft Scriptable Install System 3.11之前版本存在安全漏洞，该漏洞源于临时插件目录创建不当，可能导致本地用户权限提升至SYSTEM。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Nullsoft Nullsoft Scriptable Install System 0 ~ 3.11 -

II. Public POCs for CVE-2025-43715

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III. Intelligence Information for CVE-2025-43715

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Other References for CVE-2025-43715 (1)

IV. Related Vulnerabilities

Same product: Nullsoft Scriptable Install System
Same vendor: Nullsoft
Same weakness: CWE-754

V. Comments for CVE-2025-43715

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