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Mitsubishi Electric CNC Series (Update A)

ID: 55e20372-2e44-59c8-b634-d92a7ebaf3b2

STIX ID: report--55e20372-2e44-59c8-b634-d92a7ebaf3b2

Feed Name: CISA Advisories

Threat Score
60/100

Date Published: 2026-08-27

Date Updated: 2026-08-28

Author: CISA

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A network-accessible out-of-bounds read vulnerability (CWE-1285) in multiple Mitsubishi Electric CNC Series devices can be triggered via specially crafted packets to TCP port 683, causing a denial-of-service; the vendor provides fixed firmware versions for many models and recommends mitigations such as applying updates, using firewalls/VPNs, IP filters, and restricting physical access.

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