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8.7
Mitsubishi Electric MELSEC iQ-F Series: Remote Denial of Service
CVE-2026-1876
Summary
A remote attacker can send a series of UDP packets to Mitsubishi Electric's MELSEC iQ-F Series FX5-ENET/IP Ethernet Module, causing it to malfunction and requiring a system reset to recover. This could disrupt business operations. Affected users should update their software to the latest version to prevent this issue.
Original title
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 de...
Original 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.
nvd CVSS4.0
8.7
Vulnerability type
CWE-404
Published: 3 Mar 2026 · Updated: 13 Mar 2026 · First seen: 6 Mar 2026