CVE-2026-4483
Last Updated: April 8, 2026
Moxa MxGeneralIo exposes IOCTL with an insufficient access control vulnerability
| CVE ID | CVE-2026-4483 |
|---|---|
| Severity | High |
| Affected Vendors | Moxa |
| Affected Products | MxGeneralIo Windows 7 version before v1.4.0, MxGeneralIo Windows 10 version before v1.5.0, MxGeneralIo Windows 11 version before v1.5.0 |
| Vulnerability Details | An exposed IOCTL with an insufficient access control vulnerability has been identified in the utility, MxGeneralIo, for Moxa’s industrial x86 computers. The affected utility, MxGeneralIo, exposes IOCTL methods that permit direct read and write access to MSR and system memory. A local attacker with high privileges could abuse these interfaces to perform unauthorized operations. Successful exploitation may result in privilege escalation on Windows 7 systems or cause a system crash (BSoD) on Windows 10 and 11 systems, leading to a denial-of-service condition. The vulnerability could slightly affect the confidentiality and integrity of the device, but availability might be heavily impacted. No impact to the subsequent system has been identified. |
| Solutions & Rules | · Fixed in MxGeneralIo_Win7_V1.4.0_x86 · Fixed in MxGeneralIo_Win7_V1.4.0_x64 · Fixed in MxGeneralIo_V1.5.0_W10_W11 |
| Credit | Jason Huang from Cyber Threat & Product Defense Center of TXOne Networks Inc. |
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