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major vulnerability· requires attention

Affects widely deployed OT/ICS HMI/Historian suite (ICONICS/GENESIS64) with high CVSS and potential to disrupt industrial operations.

OT/ICS

CVE-2026-16438

9.4
Critical
EPSS n/aPatch availableOct 17, 2026

DCOM privilege-assignment flaw in ICONICS/GENESIS64 allows elevated DCOM operations

common questions

Is CVE-2026-16438 being exploited?

Not confirmed. CVE-2026-16438 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.

How severe is CVE-2026-16438?

CVE-2026-16438 is rated Critical with a CVSS score of 9.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-16438?

Yes. A fix has been recorded for CVE-2026-16438. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-16438 affect?

CVE-2026-16438 affects GENESIS64 <= 10.97.3, ICONICS Suite <= 10.97.3, Hyper Historian <= 10.97.3, AnalytiX <= 10.97.3, and 2 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-16438?

Apply vendor updates now; restrict product admin accounts and DCOM permissions

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
GENESIS64 <= 10.97.3ICONICS Suite <= 10.97.3Hyper Historian <= 10.97.3AnalytiX <= 10.97.3MobileHMI <= 10.97.3MC Works64 (all versions)
impact

With a product admin login, attacker can launch/operate DCOM remotely, bypass UAC, enabling data disclosure, tampering, deletion, or DoS.

action required

Immediate action required

affected versions
Mitsubishi Electric Corporation AnalytiX
  • affectedversions 10.97.3 and prior
Mitsubishi Electric Iconics Digital Solutions AnalytiX
  • affectedversions 10.97.3 and prior
Mitsubishi Electric Corporation GENESIS64
  • affectedversions 10.97.3 and prior
Mitsubishi Electric Iconics Digital Solutions GENESIS64
  • affectedversions 10.97.3 and prior
Mitsubishi Electric Corporation Hyper Historian
  • affectedversions 10.97.3 and prior
Mitsubishi Electric Iconics Digital Solutions Hyper Historian
  • affectedversions 10.97.3 and prior
Mitsubishi Electric Corporation ICONICS Suite
  • affectedversions 10.97.3 and prior
Mitsubishi Electric Iconics Digital Solutions ICONICS Suite
  • affectedversions 10.97.3 and prior
Mitsubishi Electric Corporation MC Works64
  • affectedall versions
Mitsubishi Electric Corporation MobileHMI
  • affectedversions 10.97.3 and prior
Mitsubishi Electric Iconics Digital Solutions MobileHMI
  • affectedversions 10.97.3 and prior

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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