Siemens WinCC (TIA Portal) 11 uses a reversible algorithm for storing HMI web-application…
Priority LOW 21CWE-255Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.00381 32nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2011-4515
- 2026-10-03 Alias added: GHSA-x2cf-jr43-g76c
References
More Siemens Wincc Tia Portal vulnerabilities
- TI-2013-00562 Directory traversal vulnerability in Siemens WinCC (TIA Portal) 11 allows remote… CVSS 2.0MEDIUM 4.0
- TI-2013-00561 CRLF injection vulnerability in the HMI web application in Siemens WinCC (TIA Portal) 11… CVSS 2.0MEDIUM 4.3
- TI-2013-00559 Multiple cross-site scripting (XSS) vulnerabilities in the HMI web application in Siemens… CVSS 2.0MEDIUM 4.3
- TI-2013-00558 Cross-site scripting (XSS) vulnerability in the HMI web application in Siemens WinCC (TIA… CVSS 2.0MEDIUM 4.3
- TI-2013-00560 The HMI web application in Siemens WinCC (TIA Portal) 11 allows remote authenticated… CVSS 2.0MEDIUM 4.0
- TI-2013-00563 Cross-site scripting (XSS) vulnerability in the HMI web application in Siemens WinCC (TIA… CVSS 2.0LOW 3.5
Sources
- CVE-2011-4515 · CVE Program
- CVE-2011-4515 · NVD
- FIRST EPSS
- GHSA-x2cf-jr43-g76c · GitHub Advisory Database · CC BY 4.0
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