CVE-2011-3321
HIGH · CVSS 9.3EPSS 7.1%EU EUVD
Heap-based buffer overflow in the Siemens WinCC Runtime Advanced Loader, as used in SIMATIC WinCC flexible Runtime and SIMATIC WinCC (TIA Portal) Runtime Advanced, allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a crafted packet to TCP port 2308.
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
- 7.1% (94th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-3285)
- Published
- September 16, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-3285 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- siemens / simatic wincc flexible runtime
- siemens / simatic wincc runtime
References
- http://cache.automation.siemens.com/dnl/jI/jI0NDY5AAAA_29054992_FAQ/Siemens_Security_Advisory_SSA-460621_V1_2.pdf
- http://secunia.com/advisories/46011(Vendor Advisory)
- http://support.automation.siemens.com/WW/view/en/29054992
- http://www.us-cert.gov/control_systems/pdf/ICSA-11-244-01.pdf(US Government Resource)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69803
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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