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.
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Fixes

Solution

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Workaround

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History

Mon, 09 Mar 2026 15:45:00 +0000

Type Values Removed Values Added
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.
Title MobaXterm < 26.1 Notepad++ Unquoted Service Path
Weaknesses CWE-428
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-09T17:23:49.736Z

Reserved: 2026-02-06T19:12:03.463Z

Link: CVE-2026-25866

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-09T16:16:18.970

Modified: 2026-03-09T16:16:18.970

Link: CVE-2026-25866

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses