The flaw, which is assigned the CVE identifier CVE-2024-6242, carries a CVSS v3.1 score of 8.4.
A vulnerability exists in the affected products that allows a threat actor to bypass the Trusted Slot feature in a ControlLogix controller, the U.S. Cybersecurity and Infrastructure Security Agency (CISA)
Following responsible disclosure, the shortcoming has been addressed in the following versions -
ControlLogix 5580 (1756-L8z) - Update to versions V32.016, V33.015, V34.014, V35.011, and later.
GuardLogix 5580 (1756-L8zS) - Update to versions V32.016, V33.015, V34.014, V35.011 and later.
1756-EN4TR - Update to versions V5.001 and later.
1756-EN2T Series D, 1756-EN2F Series C, 1756-EN2TR Series C, 1756-EN3TR Series B, and 1756-EN2TP Series A - Update to version V12.001 and later
“This vulnerability had the potential to expose critical control systems to unauthorized access over the CIP protocol that originated from untrusted chassis slots