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CVE-2026-25866— MobaXterm < 26.1 Notepad++ Unquoted Service Path

Quick assessment

Affected
Mobatek MobaXterm
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.

Mobatek MobaXterm是法国Mobatek公司的一套集成了增强型终端、X服务器和Unix命令集（GNU/Cygwin）的终端软件。 Mobatek MobaXterm 26.1之前版本存在代码问题漏洞，该漏洞源于不受控的搜索路径元素，可能导致在打开远程文件时执行任意代码。

CVSS 7.8 · High EPSS 0.18% · P8

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-25866

Vulnerability Information
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Vulnerability Title
MobaXterm < 26.1 Notepad++ Unquoted Service Path
Source: CVE Program / CVE List V5
Vulnerability Description
MobaXterm versions prior to 26.1 contain an uncontrolled search path element vulnerability. The application calls WinExec to execute Notepad++ without a fully qualified executable path when opening remote files. An attacker can exploit the search path behavior by placing a malicious executable earlier in the search order, resulting in arbitrary code execution in the context of the affected user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经引用的搜索路径或元素
Source: CVE Program / CVE List V5
Vulnerability Title
Mobatek MobaXterm 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mobatek MobaXterm是法国Mobatek公司的一套集成了增强型终端、X服务器和Unix命令集（GNU/Cygwin）的终端软件。 Mobatek MobaXterm 26.1之前版本存在代码问题漏洞，该漏洞源于不受控的搜索路径元素，可能导致在打开远程文件时执行任意代码。
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
Mobatek MobaXterm 0 ~ 26.1 -

II. Public POCs for CVE-2026-25866

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III. Intelligence Information for CVE-2026-25866

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Vendor Advisories for CVE-2026-25866 (1)

Vendor Pages for CVE-2026-25866 (1)

IV. Related Vulnerabilities

Same product: MobaXterm
Same vendor: Mobatek
Same weakness: CWE-428

V. Comments for CVE-2026-25866

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