CVE-2011-20001
highPriorität · verfolgen · 0EPSS 0.005 · 40. PerzentilDEEUUSEPSS · bewertet 2026-10-28
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.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenSIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants)siemens_psirt
Update to V2.0.3 or later version
- BehobenSIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants)siemens_psirt
Update to V2.0.3 or later version
- BehobenSIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants)cisa_csaf_ot
Update to V2.0.3 or later version
- BehobenSIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants)cisa_csaf_ot
Update to V2.0.3 or later version
- MitigationSIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants)siemens_psirt
Disable the web server if possible
- MitigationSIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants)siemens_psirt
Disable the web server if possible
- MitigationSIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants)cisa_csaf_ot
Disable the web server if possible
- MitigationSIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants)cisa_csaf_ot
Disable the web server if possible
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.6–8.7
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (8)
Betroffene Produkte und Versionsbereiche.
Advisories (2)
Hersteller- und Ökosystem-Meldungen dazu.
- SSA-625789SSA-625789: Multiple Vulnerabilities in SIMATIC S7-1200 CPU V1/V2 Devices2011-06-10csaf · siemens_psirtDE
SIMATIC S7-1200 CPU V1/V2 controllers contain two vulnerabilities that could allow an unauthenticated remote attacker - to trigger functions by record and playback of legitimate network communication, or - to place the controller in stop/defect state by causing a communications error. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- ICSA-25-294-03Siemens SIMATIC S7-1200 CPU V1/V2 Devices2011-06-10icsa · cisa_csaf_otUS
SIMATIC S7-1200 CPU V1/V2 controllers contain two vulnerabilities that could allow an unauthenticated remote attacker - to trigger functions by record and playback of legitimate network communication, or - to place the controller in stop/defect state by causing a communications error. Siemens has released new versions for the affected products and recommends to update to the latest versions.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (4)
Externe Belege — Patches, Meldungen, Analysen.
- https://cert-portal.siemens.com/productcert/html/ssa-625789.htmlcnnvd
- https://www.siemens.com/global/en/products/services/cert.html#SiemensSecurityAdvisoriesPatchcnnvd
- https://cert-portal.siemens.com/productcert/html/ssa-625789.htmlenisa_euvd
- https://cert-portal.siemens.com/productcert/html/ssa-625789.htmlnvd
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