CVE-2011-20001

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.

Score
CVSS 4.0 8.7 High
Status
Deferred - productcert@siemens.com
Published
2025-10-14
Last modified
2025-10-14
Weaknesses
CWE-20

Affected products

References