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Vulnerability Details :

CVE-2026-1874

Summary
Assigner-Mitsubishi
Assigner Org ID-e0f77b61-78fd-4786-b3fb-1ee347a748ad
Published At-03 Mar, 2026 | 06:46
Updated At-03 Mar, 2026 | 14:35
Rejected At-
Credits

Denial-of-Service (DoS) vulnerability in Ethernet function of MELSEC iQ-F Series EtherNet/IP module and Ethernet module

Always-Incorrect Control Flow Implementation vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP versions 1.106 and prior and Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP 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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Mitsubishi
Assigner Org ID:e0f77b61-78fd-4786-b3fb-1ee347a748ad
Published At:03 Mar, 2026 | 06:46
Updated At:03 Mar, 2026 | 14:35
Rejected At:
▼CVE Numbering Authority (CNA)
Denial-of-Service (DoS) vulnerability in Ethernet function of MELSEC iQ-F Series EtherNet/IP module and Ethernet module

Always-Incorrect Control Flow Implementation vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP versions 1.106 and prior and Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP 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.

Affected Products
Vendor
Mitsubishi Electric CorporationMitsubishi Electric Corporation
Product
MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP
Default Status
unaffected
Versions
Affected
  • versions 1.106 and prior
Vendor
Mitsubishi Electric CorporationMitsubishi Electric Corporation
Product
MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP
Default Status
unaffected
Versions
Affected
  • All versions
Problem Types
TypeCWE IDDescription
CWECWE-670CWE-670 Always-Incorrect Control Flow Implementation
Type: CWE
CWE ID: CWE-670
Description: CWE-670 Always-Incorrect Control Flow Implementation
Metrics
VersionBase scoreBase severityVector
4.08.7HIGH
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
Version: 4.0
Base score: 8.7
Base severity: HIGH
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
N/ADenial-of-Service
CAPEC ID: N/A
Description: Denial-of-Service
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-021_en.pdf
vendor-advisory
https://jvn.jp/vu/JVNVU93286687/
government-resource
Hyperlink: https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-021_en.pdf
Resource:
vendor-advisory
Hyperlink: https://jvn.jp/vu/JVNVU93286687/
Resource:
government-resource
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
Published At:03 Mar, 2026 | 07:16
Updated At:03 Mar, 2026 | 21:52

Always-Incorrect Control Flow Implementation vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP versions 1.106 and prior and Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP 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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.08.7HIGH
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/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
Type: Secondary
Version: 4.0
Base score: 8.7
Base severity: HIGH
Vector:
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/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
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-670PrimaryMitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
CWE ID: CWE-670
Type: Primary
Source: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://jvn.jp/vu/JVNVU93286687/Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
N/A
https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-021_en.pdfMitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
N/A
Hyperlink: https://jvn.jp/vu/JVNVU93286687/
Source: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
Resource: N/A
Hyperlink: https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-021_en.pdf
Source: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

2Records found
CVE-2026-1875
Matching Score-8
Assigner-Mitsubishi Electric Corporation
ShareView Details
Matching Score-8
Assigner-Mitsubishi Electric Corporation
CVSS Score-8.7||HIGH
EPSS-Not Assigned
Published-03 Mar, 2026 | 06:54
Updated-03 Mar, 2026 | 21:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Denial-of-Service (DoS) vulnerability in Ethernet function of MELSEC iQ-F Series EtherNet/IP module

Improper Resource Shutdown or Release vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP 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.

Action-Not Available
Vendor-Mitsubishi Electric Corporation
Product-MELSEC iQ-F Series FX5-EIP EtherNet/IP Module FX5-EIP
CWE ID-CWE-404
Improper Resource Shutdown or Release
CVE-2026-1876
Matching Score-8
Assigner-Mitsubishi Electric Corporation
ShareView Details
Matching Score-8
Assigner-Mitsubishi Electric Corporation
CVSS Score-8.7||HIGH
EPSS-Not Assigned
Published-03 Mar, 2026 | 07:03
Updated-03 Mar, 2026 | 21:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Denial-of-Service (DoS) vulnerability in Ethernet function of MELSEC iQ-F Series Ethernet module

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.

Action-Not Available
Vendor-Mitsubishi Electric Corporation
Product-MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP
CWE ID-CWE-404
Improper Resource Shutdown or Release
Details not found