CVE-2026-11879: CWE-427: Uncontrolled Search Path Element in Mobatek MobaXterm Personal Edition (Portable)
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.
AI Analysis
Technical Summary
CVE-2026-11879 is an uncontrolled search path element vulnerability (CWE-427) in MobaXterm Personal Edition (Portable) version 26.3 (Build 5154). The application searches for specific DLLs in a temporary directory that is predictable and writable by the user before checking system secure paths. This behavior enables a local attacker to place a malicious DLL in the temporary directory, which the application will load automatically upon startup, resulting in arbitrary code execution with the privileges of the user running the application.
Potential Impact
An attacker with local access can execute arbitrary code by placing a malicious DLL in a predictable temporary directory. This can lead to compromise of the user's environment and potentially further system access depending on user privileges. The vulnerability has a high CVSS 4.0 score of 8.5, reflecting the ease of exploitation and the impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Users should avoid running version 26.3 (Build 5154) of MobaXterm Personal Edition (Portable) in untrusted environments or with untrusted users having local access. Monitor vendor advisories for updates or patches addressing this issue.
CVE-2026-11879: CWE-427: Uncontrolled Search Path Element in Mobatek MobaXterm Personal Edition (Portable)
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.
CVSS v4.0
Score 8.5high
Affected software
pkg:github/mobatek/mobaxterm-personal-edition-portableRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-11879 is an uncontrolled search path element vulnerability (CWE-427) in MobaXterm Personal Edition (Portable) version 26.3 (Build 5154). The application searches for specific DLLs in a temporary directory that is predictable and writable by the user before checking system secure paths. This behavior enables a local attacker to place a malicious DLL in the temporary directory, which the application will load automatically upon startup, resulting in arbitrary code execution with the privileges of the user running the application.
Potential Impact
An attacker with local access can execute arbitrary code by placing a malicious DLL in a predictable temporary directory. This can lead to compromise of the user's environment and potentially further system access depending on user privileges. The vulnerability has a high CVSS 4.0 score of 8.5, reflecting the ease of exploitation and the impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Users should avoid running version 26.3 (Build 5154) of MobaXterm Personal Edition (Portable) in untrusted environments or with untrusted users having local access. Monitor vendor advisories for updates or patches addressing this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- INCIBE
- Date Reserved
- 2026-06-10T13:20:14.951Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2c0c11e617e2d83475a23d
Added to database: 6/12/2026, 1:39:29 PM
Last enriched: 6/12/2026, 1:54:25 PM
Last updated: 6/12/2026, 3:44:03 PM
Views: 4
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