CVE-2011-4515

mediumpriority · track · 18EPSS 0.004 · 32 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.38% (32nd) EPSS

CVSS 4.6 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

Siemens WinCC (TIA Portal) 11 uses a reversible algorithm for storing HMI web-application passwords in world-readable and world-writable files, which allows local users to obtain sensitive information by leveraging (1) physical access or (2) Sm@rt Server access.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationWinCC (TIA Portal) V11cisa_csaf_ot
Siemens addressed these vulnerabilities in their security advisory titled “SSA-212483: Vulnerabilities in WinCC (TIA Portal) V11.”v All vulnerabilities are fixed in the new software version WinCC (TIA Portal) V12. As a workaround to close the Web-based vulnerabilities, the HMI’s Web server may be disabled.

cvss

Technical severity, 0–10. One row per scoring source.

4.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.9–4.6

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Psecondary · CISA US

v2.03.9lowAV:L/AC:L/Au:N/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-255USprimaryCWE-261US

affected products (4)

Products and version ranges known to be affected.

Siemens WinCC (TIA Portal) V11: vers:all/*all versionscisa_csaf_otUS
Siemens WinCC (TIA Portal) V11≤ vers:all/*cisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
siemens wincc tia portal= 11.0nvdUScpe:2.3:a:siemens:wincc_tia_portal:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-13-079-03Siemens WinCC TIA Portal Vulnerabilities2013-12-22icsa · 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

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2013-03-21modified 2026-06-16

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references (7)

External citations — patches, advisories, analysis.

scry

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