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CVE-2011-5009
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…
Medium5.0EPSS 10.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 10.4% · top 4.3% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (7)
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-336-01A.pdf (opens in a new tab)x_refsource_MISCx_transferred
- 20111129 Vulnerabilities in 3S CoDeSys 3.4 SP4 Patch 2 (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 47018 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://aluigi.altervista.org/adv/codesys_1-adv.txt (opens in a new tab)x_refsource_MISCx_transferred
- 77388 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- codesys-cmpwebserver-dos(71533) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 77389 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2011-5009)Record last updated .