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CVE-2026-46710— Notepad++: Privilege Escalation in the Installer via Uncontrolled Executable Search Path

Quick assessment

Affected
notepad-plus-plus notepad-plus-plus
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.

notepad-plus-plus notepad-plus-plus是notepad-plus-plus团队的一款文本编辑软件。 notepad-plus-plus 8.9.4版本至8.9.6之前版本存在权限许可和访问控制问题漏洞，该漏洞源于安装过程中未使用绝对路径调用powershell.exe，可能导致攻击者在用户可写的自定义安装目录中预先放置恶意powershell.exe，在特权用户运行安装程序并选择该目录时，以安装程序提升权限启动恶意程序。

AI Predicted 5.6 Difficulty: Moderate EPSS 0.15% · P4

Affected Version Matrix 1

VendorProduct Version RangeStatus
notepad-plus-plus notepad-plus-plus >= 8.9.4, < 8.9.6 affected
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I. Basic Information for CVE-2026-46710

Vulnerability Information
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Vulnerability Title
Notepad++: Privilege Escalation in the Installer via Uncontrolled Executable Search Path
Source: CVE Program / CVE List V5
Vulnerability Description
Notepad++ is a free and open-source source code editor. From 8.9.4 until 8.9.6, Notepad++ contains a local privilege escalation vulnerability in the installer. During installation, the installer invokes powershell.exe without using an absolute path after setting the working directory to the installation contextMenu directory. If an attacker can pre-place a malicious powershell.exe in a user-writable custom installation directory, and a privileged user later runs the installer and selects that directory, the attacker-controlled executable is launched with the elevated privileges of the installer. This vulnerability is fixed in 8.9.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不可信的搜索路径
Source: CVE Program / CVE List V5
Vulnerability Title
notepad-plus-plus 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
notepad-plus-plus notepad-plus-plus是notepad-plus-plus团队的一款文本编辑软件。 notepad-plus-plus 8.9.4版本至8.9.6之前版本存在权限许可和访问控制问题漏洞，该漏洞源于安装过程中未使用绝对路径调用powershell.exe，可能导致攻击者在用户可写的自定义安装目录中预先放置恶意powershell.exe，在特权用户运行安装程序并选择该目录时，以安装程序提升权限启动恶意程序。
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 >= 8.9.4, < 8.9.6 -

II. Public POCs for CVE-2026-46710

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III. Intelligence Information for CVE-2026-46710

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Patches & Fixes for CVE-2026-46710 (1)

Vendor Advisories for CVE-2026-46710 (1)

Same Patch Batch · notepad-plus-plus · 2026-06-26 · 6 CVEs total

CVE-2026-52884 7.8 HIGH Notepad++: CVE-2026-48800 Bypass
CVE-2026-48778 7.8 HIGH Notepad++: Arbitrary Code Execution via config.xml commandLineInterpreter
CVE-2026-48800 7.8 HIGH Notepad++: Arbitrary Code Execution via shortcuts.xml UserCommand Injection
CVE-2026-48770 5.0 MEDIUM Notepad++ WM_COPYDATA COPYDATA_FULL_CMDLINE local DoS crash
CVE-2026-52885 Notepad++ TOCTOU: HMAC Checks Disk, Executes from Memory

IV. Related Vulnerabilities

Same product: notepad-plus-plus
Same vendor: notepad-plus-plus
Same weakness: CWE-426

V. Comments for CVE-2026-46710

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