Mitsubishi Electric MELSEC iQ-R Series

Summary

Vulnerabilities 1

• Critical 9.1
  CVE-2021-20599

  Cleartext Transmission of Sensitive InformationCleartext transmission of sensitive information vulnerability in MELSEC …

  Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU R16PSFCPU MELSEC iQ-R series SIL2 Process CPU R120PSFCPU MELSEC iQ-R Series Safety CPU R08SFCPU ICS / OT
  Oct 14, 2021

Revision history

1. 2024-04-18 #3

   Update B - Added mitigations for MELSEC iQ-R series SIL2 Process CPU

2. 2021-10-14 #2

   Update A - Changed affected products and mitigation sections.

3. 2021-08-06 #1

   Initial Publication

References

• ICSA Advisory ICSA-21-287-03 - Web Version
  https://www.cisa.gov/news-events/ics-advisories/icsa-21-287-03
• Recommended Practices
  https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
• Recommended Practices
  https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
• Recommended Practices
  https://www.cisa.gov/topics/industrial-control-systems
• Recommended Practices
  https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
• Recommended Practices
  https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
• Recommended Practices
  https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B