Rockwell Automation Allen-Bradley Micrologix 1100
A vulnerability exists with the processing of ICMP packets with an invalid IPv4 length in the MicroLogix 1100. This vulnerability could allow a remote, unauthenticated attacker to send malformed packets and cause the controller to enter 8H Hard Fault. This event would lead to denial-of-service conditions. To recover from the condition, the controller must be power cycled and the project redownloaded.CVE-2020-6111 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).