The CmpWebServer.dll module in the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows…
Priority LOW 35Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.10395 95th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:3ssoftware:codesys:3.4:sp4:*:*:*:*:*:* | 3.4 sp4 | Vulnerable | 3ssoftware |
- cpe:2.3:a:3ssoftware:codesys:3.4:sp4:*:*:*:*:*:* Versions 3.4 sp4 Vulnerable ·3ssoftware
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2011-5009
- 2026-10-03 Alias added: GHSA-8jmv-f4p4-24wg
References
More 3ssoftware Codesys vulnerabilities
- TI-2011-04289 Stack-based buffer overflow in the CmpWebServer component in 3S CoDeSys 3.4 SP4 Patch 2… CVSS 2.0HIGH 10.0
- TI-2011-04290 Integer overflow in the GatewayService component in 3S CoDeSys 3.4 SP4 Patch 2 allows… CVSS 2.0HIGH 7.5
- TI-2011-04335 The CmbWebserver.dll module of the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows… CVSS 2.0MEDIUM 6.4
Sources
- CVE-2011-5009 · CVE Program
- CVE-2011-5009 · NVD
- FIRST EPSS
- GHSA-8jmv-f4p4-24wg · GitHub Advisory Database · CC BY 4.0
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