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Rockwell Automation ControlLogix, CompactLogix, CompactLogix 5480, GuardLogix, Compact GuardLogix

CISA advisory maps CVE-2021-42260 to Rockwell ControlLogix, CompactLogix, and GuardLogix controllers with firmware below per-series patch levels.

CISA published an ICS advisory associating CVE-2021-42260 with multiple Rockwell Automation controller families: ControlLogix 5580, GuardLogix 5580, CompactLogix 5380, CompactLogix 5480, and Compact GuardLogix 5380. Affected firmware versions fall below 34.015, 35.014, 36.013, and 37.011 depending on the series. The vendor provides updated firmware as remediation.

CISA Advisories · 14d agoAdvisoryCVE-2021-42260

Rockwell Automation 1756-ENBT Module

Rockwell's 1756-ENBT ControlLogix EtherNet/IP bridge (all versions) is vulnerable to DoS via crafted CIP packets, crashing the module until manual restart.

CISA republished Rockwell Automation's advisory for CVE-2025-10478, a CWE-754 flaw affecting all versions of the 1756-ENBT ControlLogix EtherNet/IP bridge, scored CVSS 7.5. A crafted CIP packet can crash the module, and the device requires a restart to recover. Affected critical infrastructure sectors include critical manufacturing, food and agriculture, transportation systems, and water. No public exploitation has been reported; CISA recommends minimizing network exposure.

Rockwell Automation security advisory (AV26-869)

Canada's Cyber Centre flags vulnerabilities across multiple Rockwell Automation ICS products including ControlLogix 5580 and RSLinx Classic.

Canadian Centre for Cyber Security advisory AV26-869, dated September 1, 2026, lists vulnerabilities in Rockwell Automation products: 1756-ENBT Module (all versions), ArmorStart LT (v2.001 and earlier), CompactLogix 5380 / ControlLogix 5580 (V33 and earlier plus several V34-V36 releases), and RSLinx Classic (V4.50 and earlier). It references Rockwell advisories SD1792, SD1794, SD1797, and SD1798 and urges users to apply updates as available.

Canadian Centre for Cyber Security · 14d agoAdvisory

Rockwell Automation Logix Platform

CISA warns Rockwell Automation Logix controllers (ControlLogix, CompactLogix, GuardLogix) up to V36.012 are affected by CVE-2026-9637 (CVSS 7.5).

CISA published ICS advisory ICSA-26-244-03 covering the Rockwell Automation Logix Platform. Affected products include ControlLogix 5580, CompactLogix 5380, GuardLogix 5580, and Compact GuardLogix 5380 running firmware through V33 and selected V34-V36 releases. The underlying vulnerability is tracked as CVE-2026-9637 with a vendor CVSS v3 score of 7.5. The advisory provides guidance for industrial operators to update affected controllers.

CISA Advisories · 14d agoAdvisoryCVE-2026-9637