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.
History

Fri, 05 Jun 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Mobatek
Mobatek mobaxterm
Vendors & Products Mobatek
Mobatek mobaxterm

Thu, 04 Jun 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 04 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Mobatek MobaXterm 12.1 Buffer Overflow via Sessions File
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-06-04T13:22:45.443Z

Updated: 2026-06-04T15:06:20.007Z

Reserved: 2026-06-04T11:11:45.519Z

Link: CVE-2019-25741

cve-icon Vulnrichment

Updated: 2026-06-04T14:51:43.002Z

cve-icon NVD

Status : Deferred

Published: 2026-06-04T14:16:32.787

Modified: 2026-06-04T15:00:40.757

Link: CVE-2019-25741

cve-icon Redhat

No data.