Denial of Service Vulnerability in Modicon M241/M251 Logic Controllers Firmware

CVE-2021-22699 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Improper Input Validation vulnerability exists in Modicon M241/M251 logic controllers firmware prior to V5.1.9.1 that could cause denial of service when specific crafted requests are sent to the controller over HTTP.

Learn more about our Web Application Penetration Testing UK.