CVE-2019-25741
Mobatek MobaXterm 12.1 Buffer Overflow via Sessions File
- State
- Published
- Severity
- 9.3 Critical
- Published
- Jun 4, 2026
- Updated
- Jul 28, 2026
- Reserved
- Jun 4, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Affected Products
| Product | Versions |
|---|---|
Mobatek MobaXtermMobatek |
|
References
- ExploitDB-47429exploit
- Product Referenceproduct
- VulnCheck Advisory: Mobatek MobaXterm 12.1 Buffer Overflow via Sessions Filethird-party-advisory
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