CVE-2026-25866 HIGH

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

Vendor Mobatek
Product MobaXterm
Weakness CWE-428
Published March 9, 2026
Last update March 11, 2026

CVSS base score

8.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 9, 2026 CVE published
March 11, 2026 Record updated