CVE-2011-4057
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedWibu-Systems AG CodeMeter Runtime 4.30c, 4.10b, and possibly other versions before 4.40 allows remote attackers to cause a denial of service (CodeMeter.exe crash) via certain crafted packets to TCP port 22350.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceWibu-Systems CodeMeter Runtime versions before 4.40 contain a denial-of-service vulnerability where remote attackers can crash the CodeMeter.exe service by sending crafted packets to TCP port 22350. The vulnerability is network-exploitable with no authentication required.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 4.30d= 4.10b= 4.20a= 4.30cCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify CodeMeter Runtime is installedCheck for the presence of CodeMeter Runtime on the system. Look for installation directory (typically C:\Program Files\WIBU-SYSTEMS\CodeMeter or C:\Program Files (x86)\WIBU-SYSTEMS\CodeMeter on Windows), or check Programs and Features/Control Panel for Wibu-Systems CodeMeter entry.Affected if CodeMeter Runtime is installed on the system
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Determine installed CodeMeter Runtime versionOpen the CodeMeter Control Center (usually accessible via Start menu or system tray), or right-click on CodeMeter.exe in the installation directory and view Properties > Details for the version number. Alternatively, check the version displayed in the CodeMeter Control Center's About or Information section.Affected if The installed version is 4.30d or lower, or exactly 4.10b, 4.20a, or 4.30c (any version before 4.40)
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Confirm TCP port 22350 is listeningOpen Command Prompt and run: netstat -an | findstr "22350" or use PowerShell: Get-NetTCPConnection -LocalPort 22350. This checks if the CodeMeter service is accepting connections on the default port.Affected if Port 22350 is shown as LISTENING or ESTABLISHED, indicating the service is exposed on the network
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Verify CodeMeter.exe service is runningOpen Services (services.msc) and locate "CodeMeter Runtime Server" or "CodeMeter License Server", or run: sc query CodeMeter in Command Prompt. Also check if CodeMeter.exe appears in Task Manager's running processes.Affected if The CodeMeter.exe service is currently running
If CodeMeter Runtime version is below 4.40 (specifically 4.30d or lower, or exactly 4.10b, 4.20a, or 4.30c) AND the service is running with TCP port 22350 exposed on the network, the system is vulnerable to CVE-2011-4057.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade CodeMeter Runtime to version 4.40 or later. If immediate patching is not feasible, consider network segmentation or firewall rules to restrict access to TCP port 22350 from untrusted sources.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-4057 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2011-4057 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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