MobaXterm Personal Edition (Portable) 26.4 GA extracts the CygUtils64.plugin file without first verifying its integrity. A local attacker with write permissions on this file can replace the ‘bin/cygwin1.dll’ library contained within it with a malicious library. When the victim opens a Local Shell session or uses a Cygwin-based function, the application extracts the component and loads the tampered library, executing code with the victim’s permissions. Exploitation requires write access to the plugin and does not, in itself, involve privilege escalation.
Metrics
Affected Vendors & Products
References
History
Tue, 20 Oct 2026 19:30:00 +0000
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ssvc
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Mon, 19 Oct 2026 08:45:00 +0000
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| Description | MobaXterm Personal Edition (Portable) 26.4 GA extracts the CygUtils64.plugin file without first verifying its integrity. A local attacker with write permissions on this file can replace the ‘bin/cygwin1.dll’ library contained within it with a malicious library. When the victim opens a Local Shell session or uses a Cygwin-based function, the application extracts the component and loads the tampered library, executing code with the victim’s permissions. Exploitation requires write access to the plugin and does not, in itself, involve privilege escalation. | |
| Title | Lack of integrity checks in Mobatek’s MobaXterm | |
| First Time appeared |
Mobatek
Mobatek mobaxterm |
|
| Weaknesses | CWE-345 | |
| CPEs | cpe:2.3:a:mobatek:mobaxterm:26.4_ga:*:*:*:*:*:*:* | |
| Vendors & Products |
Mobatek
Mobatek mobaxterm |
|
| References |
| |
| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: INCIBE
Published: 2026-10-19T08:19:20.794Z
Updated: 2026-10-20T18:20:13.384Z
Reserved: 2026-10-19T07:34:11.465Z
Link: CVE-2026-112161
Updated: 2026-10-20T18:20:04.768Z
Status : Deferred
Published: 2026-10-19T09:17:08.097
Modified: 2026-10-20T19:17:31.230
Link: CVE-2026-112161
No data.