Is CVE-2011-4515 being actively exploited?

CVE-2011-4515 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-4515?

CVE-2011-4515 has a CVSS 2.0 base score of 4.6 (MEDIUM).

CVE-2011-4515

MEDIUM · CVSS 4.6EPSS 0.4%EU EUVD

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.

Key facts

CVSS score: 4.6 (v2.0)
Severity: MEDIUM
CVSS vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-255
EPSS score: 0.4% (32th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-4441)
Published: March 21, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-4441 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

siemens / wincc tia portal

References

http://ics-cert.us-cert.gov/pdf/ICSA-13-079-03.pdf(US Government Resource)
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-212483.pdf(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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