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CVE-2025-49144— Notepad++ Privilege Escalation in Installer via Uncontrolled Executable Search Path

Quick assessment

Affected
notepad-plus-plus notepad-plus-plus
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Notepad++是中国台湾侯今吾（Don Ho）个人开发者的一款开源的纯文本编辑器。 Notepad++ 8.8.1及之前版本存在安全漏洞，该漏洞源于安装程序存在不安全可执行文件搜索路径导致权限提升。

CVSS 7.3 · High EPSS 0.66% · P50
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I. Basic Information for CVE-2025-49144

Vulnerability Information
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Vulnerability Title
Notepad++ Privilege Escalation in Installer via Uncontrolled Executable Search Path
Source: CVE Program / CVE List V5
Vulnerability Description
Notepad++ is a free and open-source source code editor. In versions 8.8.1 and prior, a privilege escalation vulnerability exists in the Notepad++ v8.8.1 installer that allows unprivileged users to gain SYSTEM-level privileges through insecure executable search paths. An attacker could use social engineering or clickjacking to trick users into downloading both the legitimate installer and a malicious executable to the same directory (typically Downloads folder - which is known as Vulnerable directory). Upon running the installer, the attack executes automatically with SYSTEM privileges. This issue has been fixed and will be released in version 8.8.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
最小特权原则违背
Source: CVE Program / CVE List V5
Vulnerability Title
Notepad++ 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Notepad++是中国台湾侯今吾（Don Ho）个人开发者的一款开源的纯文本编辑器。 Notepad++ 8.8.1及之前版本存在安全漏洞，该漏洞源于安装程序存在不安全可执行文件搜索路径导致权限提升。
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
notepad-plus-plus notepad-plus-plus < 8.8.2 -

II. Public POCs for CVE-2025-49144

# POC Description Source Link Shenlong Link
1 PoC CVE-2025-49144 https://github.com/Vr00mm/CVE-2025-49144 POC Details
2 CVE-2025-49144 PoC for security researchers to test and try. https://github.com/TheTorjanCaptain/CVE-2025-49144_PoC POC Details
3 CVE-2025-49144 * Notepad++ v8.8.1 * SYSTEM-level POC https://github.com/assad12341/notepad-v8.8.1-LPE-CVE- POC Details
4 A test attack for CVE-2025-49144 https://github.com/tristanvandermeer/CVE-2025-49144-Test POC Details
5 Proof of Concept (PoC) that exploits the CVE-2025-49144 vulnerability in the Notepad++ 8.8.1 installer. https://github.com/b0ySie7e/Notepad-8.8.1_CVE-2025-49144 POC Details
6 None https://github.com/timsonner/CVE-2025-49144-Research POC Details
7 Notepad++ Privilege Escalation https://github.com/0xCZR1/cve-2025-49144 POC Details
8 None https://github.com/onniio/CVE-2025-49144 POC Details
9 None https://github.com/ammarm0010/CVE-2025-49144_PoC POC Details
10 This is my reproduce PoC for CVE-2025-49144 https://github.com/havertz2110/CVE-2025-49144 POC Details
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III. Intelligence Information for CVE-2025-49144

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IV. Related Vulnerabilities

Same product: notepad-plus-plus
Same vendor: notepad-plus-plus
Same weakness: CWE-272

V. Comments for CVE-2025-49144

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