CVE-1999-0844
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 · uneditedDenial of service in MDaemon WorldClient and WebConfig services via a long URL.
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 · low confidenceDenial of service vulnerability in MDaemon's WorldClient and WebConfig web services. The vulnerability is triggered by sending an excessively long URL request to these web interfaces, causing the service to become unresponsive or crash.
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= 2.8.5= 2.8.6CVSS 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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Identify MDaemon installation and versionCheck the installed MDaemon version by looking in the program directory for a version file, checking the Windows registry under HKLM\Software\MDaemon, or reviewing the application log at startup. Common paths: C:\Program Files\MDaemon\ or C:\MDaemon\Affected if The installed version is 2.8.5 or 2.8.6
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Confirm WorldClient web service is enabledInspect the MDaemon configuration file (app.ini or worldclient.ini) in the MDaemon directory for settings under [WorldClient] section. Look for the Enabled=YES parameter or check if the WorldClient folder exists in the MDaemon\app directory.Affected if WorldClient is enabled and accessible
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Confirm WebConfig web service is enabledInspect the MDaemon configuration file (app.ini or webconfig.ini) for settings under [WebConfig] section. Look for the Enabled=YES parameter or verify the WebConfig virtual directory is configured.Affected if WebConfig is enabled and accessible
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Verify web service network exposureCheck which network interfaces the MDaemon HTTP service is bound to by reviewing the Listen= setting in the worldclient.ini or app.ini file, or by running netstat -an to see if ports 3000, 4000, or 80 are listening.Affected if The web services are listening on external interfaces rather than localhost only
You are affected if MDaemon version 2.8.5 or 2.8.6 is installed AND either WorldClient or WebConfig web services are enabled and exposed.
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 dataApply available patches from MDaemon vendor, implement URL length limits at the web server or WAF level to reject abnormally long requests, and consider disabling unused web services.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-1999-0844 — 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-1999-0844 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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