Description

A vulnerability has been identified in SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) (All versions < V2.0.3), SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants) (All versions < V2.0.3). The web server interface of affected devices improperly processes incoming malformed HTTP traffic at high rate. This could allow an unauthenticated remote attacker to force the device entering the stop/defect state, thus creating a denial of service condition.

INFO

Published Date :

2025-10-14T09:14:53.944Z

Last Modified :

2025-10-14T18:57:37.446Z

Source :

siemens
AFFECTED PRODUCTS

The following products are affected by CVE-2011-20001 vulnerability.

Vendors Products
Siemens
  • Simatic
  • Simatic S7-1200
  • Simatic S7-1200 Cpu
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2011-20001.

URL Resource
https://cert-portal.siemens.com/productcert/html/ssa-625789.html cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact