CVE-2026-16438

Status: Awaiting AnalysisCritical (9.4)—

Severity9.4Critical · CVSS 4.0

Exploitation probability0.23 %higher than 13% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

Incorrect Privilege Assignment vulnerability in Mitsubishi Electric GENESIS64 versions 10.97.3 and prior, ICONICS Suite versions 10.97.3 and prior, Hyper Historian versions 10.97.3 and prior, AnalytiX versions 10.97.3 and prior, MobileHMI 10.97.3 and prior, MC Works64 all versions, Mitsubishi Electric Iconics Digital Solutions GENESIS64 versions 10.97.3 and prior, ICONICS Suite versions 10.97.3 and prior, Hyper Historian versions 10.97.3 and prior, AnalytiX versions 10.97.3 and prior, and MobileHMI 10.97.3 and prior allows an attacker who can log in using the same administrator account for the affected products to launch and operate DCOM objects locally or remotely.

Read full descriptionShow less

During installation, the installers of the affected products unnecessarily grant default DCOM permissions to the administrator account of the affected products. Users with that administrator accounts can locally or remotely launch and operate DCOM objects that should require UAC elevation. As a result, the attacker may disclose, tamper with, destroy, or delete internal information, or cause the affected system to enter a denial-of-service (DoS) condition.

CVSS

Base score: 9.4
Version: 4.0
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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.23 %
Percentile among all scored CVEs: 13
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement85 %
Primary impactT1548.002 Bypass User Account Controlprivilege escalation70 %
Secondary impactT1499 Endpoint Denial of Serviceimpact70 %
Secondary impactT1565 Data Manipulationimpact55 %

Vector AV:N/PR:H: un administrador autenticado remoto lanza objetos DCOM que deberían requerir elevación UAC (T1548.002); el texto cita además DoS y manipulación de datos.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Privileged Account Management Network Segmentation Update Software Vulnerability Scanning Threat Intelligence Program Restrict File and Directory Permissions

Affected technologies (6)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Iconics — Analytix^AI Iconics — Hyper Historian^AI Iconics — Iconics Suite^AI Iconics — Mobilehmi^AI Mitsubishielectric — Genesis64^AI Mitsubishielectric — MC Works64^AI

CWEs

CWE-266

References

Show 1 references

https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-006_en.pdf

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-16438",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-16438",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-15T14:04:50.609085Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 9.4,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "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",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "HIGH",
          "subIntegrityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
      "affectedData": [
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "GENESIS64",
          "versions": [
            {
              "status": "affected",
              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Iconics Digital Solutions",
          "product": "GENESIS64",
          "versions": [
            {
              "status": "affected",
              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "ICONICS Suite",
          "versions": [
            {
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              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Iconics Digital Solutions",
          "product": "ICONICS Suite",
          "versions": [
            {
              "status": "affected",
              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "Hyper Historian",
          "versions": [
            {
              "status": "affected",
              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Iconics Digital Solutions",
          "product": "Hyper Historian",
          "versions": [
            {
              "status": "affected",
              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "AnalytiX",
          "versions": [
            {
              "status": "affected",
              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Iconics Digital Solutions",
          "product": "AnalytiX",
          "versions": [
            {
              "status": "affected",
              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MobileHMI",
          "versions": [
            {
              "status": "affected",
              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Iconics Digital Solutions",
          "product": "MobileHMI",
          "versions": [
            {
              "status": "affected",
              "version": "versions 10.97.3 and prior"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Mitsubishi Electric Corporation",
          "product": "MC Works64",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-10-15T09:17:17.087",
  "references": [
    {
      "url": "https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-006_en.pdf",
      "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
      "description": [
        {
          "lang": "en",
          "value": "CWE-266"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incorrect Privilege Assignment vulnerability in Mitsubishi Electric GENESIS64 versions 10.97.3 and prior, ICONICS Suite versions 10.97.3 and prior, Hyper Historian versions 10.97.3 and prior, AnalytiX versions 10.97.3 and prior, MobileHMI 10.97.3 and prior, MC Works64 all versions, Mitsubishi Electric Iconics Digital Solutions GENESIS64 versions 10.97.3 and prior, ICONICS Suite versions 10.97.3 and prior, Hyper Historian versions 10.97.3 and prior, AnalytiX versions 10.97.3 and prior, and MobileHMI 10.97.3 and prior allows an attacker who can log in using the same administrator account for the affected products to launch and operate DCOM objects locally or remotely. During installation, the installers of the affected products unnecessarily grant default DCOM permissions to the administrator account of the affected products. Users with that administrator accounts can locally or remotely launch and operate DCOM objects that should require UAC elevation. As a result, the attacker may disclose, tamper with, destroy, or delete internal information, or cause the affected system to enter a denial-of-service (DoS) condition."
    }
  ],
  "lastModified": "2026-10-16T06:17:11.153",
  "sourceIdentifier": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp"
}