CVE-2019-25741Mobatek MobaXterm 12.1 Buffer Overflow via Sessions File
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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
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-120
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Jul 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Mobatek Mobatek MobaXterm mobatek:mobaxterm (from the name) | 12.1 | CNA record |
References
- https://www.exploit-db.com/exploits/47429exploit
- https://download.mobatek.net/1112019010310554/MobaXterm_Portable_v11.1.zipproduct
- https://www.vulncheck.com/advisories/mobatek-mobaxterm-buffer-overflow-via-sessions-filethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.