CVE-2011-5009
MEDIUM · CVSS 5.0EPSS 10.4%EU EUVD
The CmpWebServer.dll module in the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a crafted Content-Length in an HTTP POST or (2) an invalid HTTP request method.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- EPSS score
- 10.4% (96th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-4914)
- Published
- December 25, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-4914 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- 3ssoftware / codesys
References
- http://aluigi.altervista.org/adv/codesys_1-adv.txt
- http://seclists.org/bugtraq/2011/Nov/178
- http://secunia.com/advisories/47018(Vendor Advisory)
- http://www.osvdb.org/77388
- http://www.osvdb.org/77389
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-336-01A.pdf(Exploit, US Government Resource)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71533
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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