Vulnerability details
CVE-2026-1876
Mitsubishi Electric MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP
Denial-of-Service (DoS) vulnerability in Ethernet function of MELSEC iQ-F Series Ethernet module
CVSS 4.0
8.7High
Official description
Improper Resource Shutdown or Release vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP all versions allows a remote attacker to cause a denial-of-service (DoS) condition on the products by continuously sending UDP packets to the products. A system reset of the product is required for recovery.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.7High | 4.0 | CVEProject cvelistV5 (CNA) (Mitsubishi) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Mitsubishi Electric Corporation | MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP | All versions | CVEProject cvelistV5 (CNA) |
References and advisories
3- https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-021_en.pdf vendor-advisory
- https://jvn.jp/vu/JVNVU93286687/ government-resource
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-62-01 government-resource
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Details
- Published
- 2026-03-03
- Last updated
- 2026-03-04
- State
- Published
- Assigner (CNA)
- Mitsubishi
Exploit prediction (EPSS)
0.48%
Probability of exploitation in 30 days
41.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-404Improper Resource Shutdown or Release