CWE-287: Improper Authentication vulnerability exists which could cause the execution of commands on the webserver without authentication when sending specially crafted HTTP requests.
https://www.se.com/ww/en/download/document/SEVD-2020-287-01/
https://download.schneider-electric.com/files?p_File_Name=SEVD-2020-287-01_Modicon_Web_Server_Security_Notificatiton.pdf&p_Doc_Ref=SEVD-2020-287-01&p_enDocType=Security+and+Safety+Notice
Source: Mitre, NVD
Published: 2020-12-01
Updated: 2025-06-10
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00574