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Vulnerabilities

CVE-2020-7477 | BDVDB-2026-132821 Detail

Modicon Quantum Ethernet Network module and Quantum / Premium COPRO (Quantum Ethernet Network module 140NOE771x1, versions 7.0 and prior, Quantum processors with integrated Ethernet – 140CPU65xxxxx, all versions, Premium processors with integrated Ethernet, all versions)

Description#

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum Ethernet Network module 140NOE771x1 (Versions 7.0 and prior), Quantum processors with integrated Ethernet – 140CPU65xxxxx (all Versions), and Premium processors with integrated Ethernet (all Versions), which could cause a Denial of Service when sending a specially crafted command over Modbus.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

  • CWE-754 Improper Check for Unusual or Exceptional Conditions

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.
  2. Version 2Most recent update recorded in the CVE List.