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TI-2019-15791 Aliases CVE-2019-25741GHSA-288f-q89m-r9qr

Mobatek MobaXterm 12.1 Buffer Overflow via Sessions File

Priority HIGH 81CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00638 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MobatekMobatek MobaXterm12.1—No fix listedCNA
  • Mobatek MobaXterm VendorMobatek Affected 12.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-25741
  2. 2026-10-03 Alias added: GHSA-288f-q89m-r9qr
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Exploit 1

Other 1

  • TI-2022-17979 An access control issue in MobaXterm before v22.1 allows attackers to make connections to… CVSS 3.1HIGH 8.1
  • TI-2022-17980 When aborting a SFTP connection, MobaXterm before v22.1 sends a hardcoded password to the… CVSS 3.1CRITICAL 9.1
  • TI-2017-11289 The TELNET service in Mobatek MobaXterm 10.4 does not require authentication, which… CVSS 3.1CRITICAL 9.8
  • TI-2019-12274 In MobaXterm 11.1 and 12.1, the protocol handler is vulnerable to command injection. CVSS 3.1HIGH 8.8
  • TI-2019-05419 In MobaTek MobaXterm Personal Edition v11.1 Build 3860, the SSH private key and its… CVSS 3.0CRITICAL 9.8
  • TI-2019-10117 In MobaXterm 11.1, the mobaxterm: URI handler has an argument injection vulnerability… CVSS 3.0HIGH 8.8
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences