CVE-2026-16438 Mitsubishi Electric GENESIS64 - Incorrect Privilege Assignment

Mitsubishi Electric GENESIS64, ICONICS Suite, Hyper Historian, AnalytiX, MobileHMI, and MC Works64 (all versions or <= 10.97.3) contain an incorrect privilege assignment caused by default DCOM permissions granted to administrator accounts, letting logged-in administrators locally or remotely launch and operate DCOM objects without UAC elevation, exploit requires attacker to log in with administrator account.

CVSS base score 9.4 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Incorrect Privilege Assignment
Impact
Information Disclosure, Data Tampering, Denial Of Service
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
15 October 2026
Updated
15 October 2026
Weakness
CWE-266

Vendor fix

Update to the latest available version where DCOM permissions are properly restricted.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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