TI-2026-10250 Aliases CVE-2026-11879 GHSA-9626-78xh-92cx

Arbitrary code execution in MobaXterm Personal Edition (Portable)

LOW 38CWE-427Published 2026-06-12 · Updated 2026-06-12

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-427.

Summary

MobaXterm Personal Edition (Portable), in its 26.3 version (Build 5154), allows arbitrary code execution by loading malicious DLLs from a temporary directory that is predictable and can be modified by the user. During startup, the application searches for specific DLLs in this location before resorting to the system’s secure paths, enabling an attacker with local access to place a specially crafted DLL to be executed automatically when the victim launches the application.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00108 1st percentileScored 2026-11-07

Fix Fixed MobaXterm Personal Edition (Portable) (Mobatek): 26.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Mobatek	MobaXterm Personal Edition (Portable)	26.3	26.4	Patch available	CNA

MobaXterm Personal Edition (Portable) VendorMobatek Affected 26.3 Fixed in 26.4 Patch available CNA

Remediation

Fix · CNA MobaXterm Personal Edition (Portable) (Mobatek) Fixed in 26.4

Timeline

2026-10-02 Threatist record created from CVE-2026-11879
2026-10-03 Alias added: GHSA-9626-78xh-92cx

References

Patch 1

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-mobateks-mobaxterm-personal-edition-portable

TI-2019-15791 Mobatek MobaXterm 12.1 Buffer Overflow via Sessions File CVSS 4.0CRITICAL 9.3
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

See all 15 →

Sources

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