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CVE-2011-4512

MEDIUM · CVSS 5.0EPSS 1.6%EU EUVD

CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

Key facts

CVSS score
5.0 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:L/Au:N/C:N/I:P/A:N
Weakness (CWE)
CWE-94
EPSS score
1.6% (76th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2011-4438)
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-2011-4438 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected 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
  • siemens / wincc
  • siemens / wincc flexible
  • siemens / wincc flexible
  • siemens / wincc flexible
  • siemens / wincc flexible
  • siemens / wincc flexible
  • siemens / wincc flexible
  • siemens / wincc flexible runtime
  • siemens / wincc runtime advanced

References

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

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