CVE-2026-11879

Arbitrary code execution in MobaXterm Personal Edition (Portable)

Published Jun 12, 2026 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

The vulnerability has been fixed by the Mobatek team in version 26.4.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Mobatek mobaxterm Personal Edition
Vendors & Products Mobatek mobaxterm Personal Edition
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Arbitrary code execution in MobaXterm Personal Edition (Portable)
First Time appeared Mobatek
Mobatek mobaxterm Personal Edition Portable
Weaknesses CWE-427
CPEs cpe:2.3:a:mobatek:mobaxterm_personal_edition_portable_:26.3:*:*:*:*:*:*:*
cpe:2.3:a:mobatek:mobaxterm_personal_edition_portable_:26.4:*:*:*:*:*:*:*
Vendors & Products Mobatek
Mobatek mobaxterm Personal Edition Portable
References
Metrics cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
INCIBE
Published
Updated
Jun 12, 2026, 2:00 PM
Reserved
Jun 10, 2026, 1:20 PM
Status
Deferred
Published
Jun 12, 2026, 2:16 PM
Modified
Oct 26, 2026, 11:10 AM