CVE-2011-20002 HIGH

CVE-2011-20002

Vendor Siemens
Product SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants)
Weakness CWE-294
Published October 14, 2025
Last update October 14, 2025
View on NVD All CVEs

CVSS base score

7.4/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A vulnerability has been identified in SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) (All versions < V2.0.2), SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants) (All versions < V2.0.2). Affected controllers are vulnerable to capture-replay in the communication with the engineering software. This could allow an on-path attacker between the engineering software and the controller to execute any previously recorded commands at a later time (e.g. set the controller to STOP), regardless whether or not the controller had a password configured.

Key dates

02Disclosure timeline

October 14, 2025 CVE published
October 14, 2025 Record updated