CVE-2011-4875
Stack-based buffer overflow in HmiLoad in the runtime loader 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, when Transfer Mode is enabled, allows remote attackers to execute arbitrary code via vectors related to Unicode strings.
Key facts
- CVSS score
- 9.3 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-119
- EPSS score
- 13.8% (97th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-4792)
- Published
- February 3, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-4792 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- siemens / simatic hmi panels
- siemens / simatic hmi panels
- siemens / simatic hmi panels
- siemens / simatic hmi panels
- siemens / simatic hmi panels
- siemens / wincc
- siemens / wincc flexible
- siemens / wincc flexible
- siemens / wincc flexible
- siemens / wincc flexible
- siemens / wincc flexible runtime
- siemens / wincc runtime advanced
References
- http://aluigi.org/adv/winccflex_1-adv.txt
- http://www.exploit-db.com/exploits/18166
- http://www.osvdb.org/77380
- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf(Vendor Advisory)
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02.pdf
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02A.pdf
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf(US Government Resource)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71449
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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