CVE-2011-4509

highPriorität · verfolgen · 41OT-Risiko · erhöhtEPSS 0.020 · 80. PerzentilEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
1.98% (80th) EPSS
CVSS 10 · high
Is it mine?
26 products
Prüfe deine Angriffsfläche
Who says so?
3 sources
enisa_euvd · cisa_csaf_ot · nvd

EPSS · bewertet 2026-10-25

The HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime has an improperly selected default password for the administrator account, which makes it easier for remote attackers to obtain access via a brute-force approach involving many HTTP requests.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Noch kein Hersteller-Fix; eine Mitigation ist verfügbar.

  • MitigationMultiple SIMATIC Panelscisa_csaf_ot

    Product documentation has been updated to tell the user how to set a proper password during initial setup to remove the risk of the default password vulnerability.

  • MitigationSIMATIC WinCC Runtime Advancedcisa_csaf_ot

    Product documentation has been updated to tell the user how to set a proper password during initial setup to remove the risk of the default password vulnerability.

  • MitigationSIMATIC WinCC flexible RTcisa_csaf_ot

    Product documentation has been updated to tell the user how to set a proper password during initial setup to remove the risk of the default password vulnerability.

  • MitigationMultiple SIMATIC HMI panels (TP, OP, MP, Comfort Panels, Mobile Panels)cisa_csaf_ot

    Lack of telnet daemon authentication - Because telnet is a clear text protocol, customers are advised to be aware of corresponding risks. The telnet daemon is disabled by default in product versions WinCC flexible 2008 SP3 and newer, as well as WinCC V11 (TIA Portal) SP2 and newer. Siemens recommends disabling the telnet function on SIMATIC panels when telnet is not actively being used.

  • MitigationWinCC V11 (TIA portal)cisa_csaf_ot

    Lack of telnet daemon authentication - Because telnet is a clear text protocol, customers are advised to be aware of corresponding risks. The telnet daemon is disabled by default in product versions WinCC flexible 2008 SP3 and newer, as well as WinCC V11 (TIA Portal) SP2 and newer. Siemens recommends disabling the telnet function on SIMATIC panels when telnet is not actively being used.

  • MitigationWinCC V11 Runtime Advancedcisa_csaf_ot

    Lack of telnet daemon authentication - Because telnet is a clear text protocol, customers are advised to be aware of corresponding risks. The telnet daemon is disabled by default in product versions WinCC flexible 2008 SP3 and newer, as well as WinCC V11 (TIA Portal) SP2 and newer. Siemens recommends disabling the telnet function on SIMATIC panels when telnet is not actively being used.

  • MitigationWinCC flexiblecisa_csaf_ot

    Lack of telnet daemon authentication - Because telnet is a clear text protocol, customers are advised to be aware of corresponding risks. The telnet daemon is disabled by default in product versions WinCC flexible 2008 SP3 and newer, as well as WinCC V11 (TIA Portal) SP2 and newer. Siemens recommends disabling the telnet function on SIMATIC panels when telnet is not actively being used.

  • MitigationWinCC flexible Runtimecisa_csaf_ot

    Lack of telnet daemon authentication - Because telnet is a clear text protocol, customers are advised to be aware of corresponding risks. The telnet daemon is disabled by default in product versions WinCC flexible 2008 SP3 and newer, as well as WinCC V11 (TIA Portal) SP2 and newer. Siemens recommends disabling the telnet function on SIMATIC panels when telnet is not actively being used.

02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

10.0
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 8.5–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 10
v2.010criticalAV:N/AC:L/Au:N/C:C/I:C/A:Csecondary · CISA US
v2.08.5highAV:N/AC:L/Au:N/C:C/I:C/A:C/E:Usecondary · CVSS-BT (t0sche)
03

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-264USprimärCWE-1392US
04

betroffene Produkte (26)

Betroffene Produkte und Versionsbereiche.

20 von 26 angezeigt
05

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

  • ICSA-11-356-01Siemens Simatic HMI Authentication Vulnerabilities2011-09-24icsa · cisa_csaf_otUS

    This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

  • ICSA-12-030-01ASiemens SIMATIC WinCC Vulnerabilities2012-11-02icsa · cisa_csaf_otUS

    This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

06

auch bekannt als (2)

Weitere Namen und Kennungen dieser Entität.

07

quellen

Welche Quellen diesen Datensatz belegen und wann.

enisa_euvdcisa_csaf_otnvdNVDCVE.orgMITRE
veröffentlicht 2012-02-03geändert 2026-06-16
09

Referenzen (4)

Externe Belege — Patches, Meldungen, Analysen.

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