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 Rockwell Automation RSLinx Classic (ICSA-20-100-01) – Products Used in the Water and Wastewater and Energy Sectors
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

Rockwell Automation RSLinx Classic (ICSA-20-100-01) – Products Used in the Water and Wastewater and Energy Sectors

Author: Charles Egli

Created: Thursday, April 9, 2020 - 20:29

Categories: Cybersecurity

CISA has published an advisory on an incorrect permission assignment for critical resource vulnerability in Rockwell Automation RSLinx Classic. Versions 4.11.00 and prior are affected. Successful exploitation of this vulnerability could allow a local authenticated attacker to execute malicious code when opening RSLinx Classic. For Versions 3.60 to 4.11, Rockwell Automation recommends users apply patch 1091155. Affected users are encouraged to apply the most recent version of RSLinx Classic. CISA also recommends a series of measures to mitigate the vulnerability. Read the advisory at CISA.

Related Resources

Members Only

(TLP:AMBER+STRICT) Situation Report: Heightened Threat Environment – Potential Retaliation by Iranian Threat Actors Following U.S. Strikes on Iran (Updated May 1, 2026)

May 1, 2026 in Cybersecurity, OT-ICS Security, Physical Security, Security Preparedness

Tip of the Week – April 30, 2026

Apr 30, 2026 in Cybersecurity, Security Preparedness

(TLP:CLEAR) Cyber Readiness Institute Joins WaterISAC as a Community Partner to Strengthen Cyber Readiness Across the Water Sector

Apr 30, 2026 in Cybersecurity, 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