CVE-2026-11879— Arbitrary code execution in MobaXterm Personal Edition (Portable)
Quick assessment
Affected
Mobatek MobaXterm Personal Edition (Portable)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Mobatek MobaXterm是法国Mobatek公司的一套集成了增强型终端、X服务器和Unix命令集(GNU/Cygwin)的终端软件。 mobatek mobaxterm 26.3版本存在权限许可和访问控制问题漏洞，该漏洞源于从可预测且用户可修改的临时目录加载恶意DLL，可能导致具有本地访问权限的攻击者在受害者启动应用程序时自动执行特制DLL。
Affected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mobatek | MobaXterm Personal Edition (Portable) | 26.3 |
affected |
26.4 |
unaffected |
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I. Basic Information for CVE-2026-11879
Vulnerability Information
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Vulnerability Title
Arbitrary code execution in MobaXterm Personal Edition (Portable)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
对搜索路径元素未加控制
Source: CVE Program / CVE List V5
Vulnerability Title
mobatek mobaxterm 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mobatek MobaXterm是法国Mobatek公司的一套集成了增强型终端、X服务器和Unix命令集(GNU/Cygwin)的终端软件。 mobatek mobaxterm 26.3版本存在权限许可和访问控制问题漏洞，该漏洞源于从可预测且用户可修改的临时目录加载恶意DLL，可能导致具有本地访问权限的攻击者在受害者启动应用程序时自动执行特制DLL。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mobatek | MobaXterm Personal Edition (Portable) | 26.3 | - |
|
II. Public POCs for CVE-2026-11879
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-11879 (1)
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V. Comments for CVE-2026-11879
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