# CVE-2026-16438: An arbitrary operation vulnerability in GENESIS64, ICONICS Suite, Hyper Historian, AnalytiX, MobileHMI, and MC Works64

Status: published. Published: 2026-10-15. Updated: 2026-11-05.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Mitsubishi Electric Corporation / GENESIS64: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Iconics Digital Solutions / GENESIS64: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Corporation / ICONICS Suite: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Iconics Digital Solutions / ICONICS Suite: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Corporation / Hyper Historian: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Iconics Digital Solutions / Hyper Historian: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Corporation / AnalytiX: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Iconics Digital Solutions / AnalytiX: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Corporation / MobileHMI: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Iconics Digital Solutions / MobileHMI: versions 10.97.3 and prior (affected). Source: CNA: Mitsubishi
- Mitsubishi Electric Corporation / MC Works64: all versions (affected). Source: CNA: Mitsubishi

## Severity and prioritization

- CVSS 4.0: 9.4 (critical); 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; source: CNA: Mitsubishi

- CISA KEV: No listing in collected sources

- EPSS: 0.25% as of 2026-11-04; percentile 16.96%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-266

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-006_en.pdf (CNA: Mitsubishi; vendor-advisory)

- https://jvn.jp/vu/JVNVU93251594 (CNA: Mitsubishi; government-resource)

- https://www.cisa.gov/news-events/ics-advisories/icsa-26-300-02 (CNA: Mitsubishi; government-resource)

## Provenance

- CNA: Mitsubishi: https://www.cve.org/CVERecord?id=CVE-2026-16438; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-16438; retrieved 2026-11-05; source updated Not reported

Revision: c2c2b971766c0976fc5404367936acb6ab491783aaf7a5fa249e7597707d874f

Canonical: https://y2.dev/cve/CVE-2026-16438

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.