CVE-2015-7244
HighSummary
The default configuration of the server in MobaXterm before version 8.3 has a disabled Access Control setting, resulting in no authentication requirement for X11 connections. This allows remote attackers to execute arbitrary commands or obtain sensitive information via X11 packets.
Risk Assessment
The lack of access control can lead to serious security breaches, allowing attackers to remotely execute commands and access confidential data.
Recommendation
It is recommended to update MobaXterm to the latest version and enable the access control setting for X11 connections.
Other vulnerabilities in MobaXterm
See all- CVE-2026-25866High
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.
- CVE-2019-25741Critical
Mobatek MobaXterm version 12.1 has a buffer overflow vulnerability in the username field of session files. A remote attacker can craft a malicious session file that, when imported and executed, triggers a buffer overflow and allows arbitrary code execution.
- CVE-2026-112161High
MobaXterm Personal Edition (Portable) 26.4 GA extracts the CygUtils64.plugin file without first verifying its integrity. A local attacker with write permissions on this file can replace the bin/cygwin1.dll library contained within it with a malicious library. When the victim opens a Local Shell session or uses a Cygwin-based function, the application extracts the component and loads the tampered library, executing code with the victim's permissions.
Original NVD description (English source)
The default configuration of the server in MobaXterm before 8.3 has a disabled Access Control setting and consequently does not require authentication for X11 connections, which allows remote attackers to execute arbitrary commands or obtain sensitive information via X11 packets.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS