WaterISAC Navigation
  • About
  • Report Incident
  • Contact Us
  • Become a Member
  • NRWA Signup
  • WaterISAC Champions
  • About
  • Report Incident
  • Contact Us
  • Become a Member
  • NRWA Signup
  • WaterISAC Champions
Home Community Partnerships Mitsubishi Electric MELSEC iQ-R (ICSA-20-303-02)
Become a Member

Log in

  • Upcoming Events
  • Resource Center
  • Tools
  • Webcasts
  • Contaminant Databases
  • Directory
  • About
  • Log in

  • My Account

  • Logout

  • Report Incident
  • Contact Us
  • NRWA Signup
  • WaterISAC Champions
More Resources

Mitsubishi Electric MELSEC iQ-R (ICSA-20-303-02)

Author: Charles Egli

Created: Thursday, October 29, 2020 - 17:31

Categories: Cybersecurity

CISA has published an advisory on a improper restriction of operations within the bounds of a memory buffer, session fixation, NULL pointer dereference, improper access control, argument injection, and resource management errors vulnerability in Mitsubishi Electric MELSEC iQ-R. Numerous versions of the products in these series are affected. Successful exploitation of these vulnerabilities by malicious attackers may result in network functions entering a denial-of-service condition or allow malware execution. Mitsubishi Electric recommends users take a series of mitigation measures to minimize the risk of exploiting this vulnerability. CISA has also provided a series of measures to help mitigate the vulnerability. Read the advisory at WaterISAC.

Related Resources

(TLP:CLEAR) FIRESTARTER Backdoor and Updated Emergency Directive for CISCO Firepower and Secure Firewall Devices

Apr 23, 2026 in Cybersecurity, Federal & State Resources, Security Preparedness
Members Only

(TLP:GREEN) FBI FLASH – Newly Observed Ransomware Variant Black Shrantac Threat to U.S. Entities

Apr 23, 2026 in Cybersecurity, Federal & State Resources, Security Preparedness
Members Only

(TLP:AMBER+STRICT) Likely PRC State-Sponsored Activity Observed in the Water Sector – DocuSign Phishing Tactics Identified

Apr 23, 2026 in Cybersecurity, Federal & State Resources, Security Preparedness

Become a Member
FAQs
About
Report Incident

Terms & Conditions
Privacy Policy
AI Policy
Contact Us

LinkedIn

1250 I Street NW, Suite 350
Washington, DC 20005
1-866-H2O-ISAC (1-866-426-4722)
© 2026 WaterISAC. All Rights Reserved.

Toggle the Widgetbar