CVE-2026-1876

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://jvn.jp/vu/JVNVU93286687/	Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-26-62-01	Third Party Advisory
https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-021_en.pdf	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:mitsubishielectric:melsec_iq-f_fx5-enet\/ip_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:mitsubishielectric:melsec_iq-f_fx5-enet\/ip:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-03 08:16

Updated : 2026-06-17 10:16

NVD link : CVE-2026-1876

Mitre link : CVE-2026-1876

CVE.ORG link : CVE-2026-1876

JSON object : View

Products Affected

mitsubishielectric

melsec_iq-f_fx5-enet\/ip_firmware
melsec_iq-f_fx5-enet\/ip

CWE

CWE-404

Improper Resource Shutdown or Release

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