# Mitsubishi Electric vulnerabilities & exploitation

> As of 2026-10-10, Threadlinqs tracks 5 Mitsubishi Electric CVEs, 0 in the CISA Known Exploited Vulnerabilities catalog, linked to 2 tracked threat campaigns.

**Data as of:** 2026-10-10

## Exploitation timeline

Threadlinqs has recorded 5 Mitsubishi Electric CVEs published between 2019-10-15 and 2026-06-15. The busiest month was 2026-03 (3 new CVEs). None of them is listed in CISA KEV yet.

## Most exploited vulnerabilities

Ranked with CISA KEV listings first, then EPSS exploit probability, then CVSS score. Showing 5 of 5 tracked Mitsubishi Electric CVEs.

- [CVE-2019-14931](https://intel.threadlinqs.com/cve/CVE-2019-14931) — CRITICAL 9.8 · EPSS 58.4% · 2019-10-28
- [CVE-2026-8806](https://intel.threadlinqs.com/cve/CVE-2026-8806) — HIGH 8.7 · EPSS 0.6% · 2026-06-19
- [CVE-2026-1874](https://intel.threadlinqs.com/cve/CVE-2026-1874) — HIGH 8.7 · EPSS 0.4% · 2026-03-03
- [CVE-2026-1876](https://intel.threadlinqs.com/cve/CVE-2026-1876) — HIGH 8.7 · EPSS 0.4% · 2026-03-03
- [CVE-2026-1875](https://intel.threadlinqs.com/cve/CVE-2026-1875) — HIGH 7.5 · EPSS 0.4% · 2026-03-03

## Products affected

Threadlinqs normalises CPE and CNA product records across all 5 CVEs; 4 distinct Mitsubishi Electric products are affected. The most frequently affected:

- MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP — 3 CVEs
- MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP — 2 CVEs
- Smartrtu — 1 CVE
- Smartrtu Firmware — 1 CVE

## Threat activity

2 tracked threat campaigns reference Mitsubishi Electric products or exploit Mitsubishi Electric CVEs:

- [Evooo1Bot: Multi-Functional Mirai-Based Linux Botnet Exploiting 18 Known CVEs in Internet-Facing Devices](https://intel.threadlinqs.com/threat/TL-2026-3062) — HIGH — 2026-10-09
- [Mitsubishi Electric MELSEC iQ-F FX5-ENET/IP and FX5-EIP remote unauthenticated denial-of-service via UDP flood (CVE-2026-1874, CVE-2026-1875, CVE-2026-1876)](https://intel.threadlinqs.com/threat/TL-2026-1874) — HIGH — 2026-08-04

## How to prioritise Mitsubishi Electric patching

This order follows the data Threadlinqs holds for Mitsubishi Electric, not a generic severity checklist:

- No Mitsubishi Electric CVE is in CISA KEV yet, so rank by exploit probability instead.
- Outside KEV, the highest EPSS scores are [CVE-2019-14931](https://intel.threadlinqs.com/cve/CVE-2019-14931) (58.4%), [CVE-2026-8806](https://intel.threadlinqs.com/cve/CVE-2026-8806) (0.6%), [CVE-2026-1874](https://intel.threadlinqs.com/cve/CVE-2026-1874) (0.4%).
- 1 CVE scores Critical and 4 High on CVSS v3 (maximum 9.8, average 8.7); sequence these after KEV and high-EPSS items.
- 1 CVE has a public exploit or proof of concept recorded, which shortens the time from disclosure to attack.

## About this data

Vendor attribution comes from the CNA and CPE product records of each CVE, folded to one vendor name; CVSS, EPSS and KEV status are read from the Threadlinqs CVE catalog; campaign and actor links come from tracked threat records. Counts reflect the data as of 2026-10-10 and refresh daily.

Canonical: https://intel.threadlinqs.com/vendors/mitsubishi-electric
All vendors: https://intel.threadlinqs.com/vendors
Full detection coverage and IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp