# CVE-2026-25866

## Summary

- **CVE ID:** CVE-2026-25866
- **Severity:** HIGH
- **CVSS Score:** 8.5 (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)
- **CWE:** CWE-428
- **Published:** Mar 9, 2026
- **Last Modified:** Mar 11, 2026

## 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.

## Affected Products

- Mobatek — MobaXterm (0)

## References

- [CNA](https://mobaxterm.mobatek.net/download-home-edition.html)
- [CNA](https://www.vulncheck.com/advisories/mobaxterm-notepad-unquoted-service-path)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.13%
- **EPSS Percentile:** 3.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._