CVE-2019-25741

Mobatek MobaXterm 12.1 contains a structured exception handling (SEH) based buffer overflow vulnerability in the username field of session files that allows remote attackers to execute arbitrary code. Attackers can craft a malicious MobaXterm sessions file with overflow data that triggers the vulnerability when imported and executed, enabling reverse shell execution with user privileges.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://download.mobatek.net/1112019010310554/MobaXterm_Portable_v11.1.zip
https://www.exploit-db.com/exploits/47429
https://www.vulncheck.com/advisories/mobatek-mobaxterm-buffer-overflow-via-sessions-file

Configurations

No configuration.

History

22 Jul 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Mobatek MobaXterm 12.1 contiene una vulnerabilidad de desbordamiento de búfer basada en el manejo estructurado de excepciones (SEH) en el campo de nombre de usuario de los archivos de sesión que permite a atacantes remotos ejecutar código arbitrario. Los atacantes pueden crear un archivo de sesiones de MobaXterm malicioso con datos de desbordamiento que activa la vulnerabilidad cuando se importa y ejecuta, lo que permite la ejecución de una shell inversa con privilegios de usuario.

04 Jun 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-04 14:16

Updated : 2026-07-22 20:10

NVD link : CVE-2019-25741

Mitre link : CVE-2019-25741

CVE.ORG link : CVE-2019-25741

JSON object : View

Products Affected

No product.

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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