CVE-2000-0211
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 · uneditedThe Windows Media server allows remote attackers to cause a denial of service via a series of client handshake packets that are sent in an improper sequence, aka the "Misordered Windows Media Services Handshake" vulnerability.
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 confidenceWindows Media Services contains a denial of service vulnerability where remote attackers can cause the server to become unresponsive by sending client handshake packets in an improper sequence. The server fails to handle misordered handshake packets correctly, leading to a service disruption.
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= 4.0= 4.1CVSS 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 if Windows Media Services is installedCheck the system for presence of Windows Media Services component through Control Panel Add/Remove Programs, or check for the Windows Media Services service in Services.mscAffected if Windows Media Services appears in installed programs or services list
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Determine the installed version of Windows Media ServicesOpen Windows Media Services administrator tool (wmadmx.exe) or check the version through the service properties. The version is displayed as 4.xAffected if The version is exactly 4.0 or 4.1 (these are the only affected versions)
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Confirm if the service is currently runningOpen Services.msc and check the status of Windows Media Services, or run 'net start' to list running servicesAffected if The Windows Media Services service shows as Running or Started
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Check if Windows Media Services is listening on network portsUse netstat -an to check if ports 1755 (MSDP) and related media distribution ports are in LISTENING state. Also check for UDP bindings on these portsAffected if The server is listening on UDP/TCP port 1755 or associated Windows Media Services ports
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Verify network exposure of the serviceReview firewall rules or binding configuration to determine if the Windows Media Services ports are accessible from external network addresses rather than only localhostAffected if Port 1755 or related Windows Media Services ports are accessible from untrusted network interfaces
A system is affected if it is running Windows Media Services version 4.0 or 4.1 with the service exposed to network connections, allowing remote attackers to send handshake packets.
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 dataBlock external access to Windows Media Services ports (typically UDP/TCP 1755 and related ports) at the network perimeter using firewall rules. If the service is not required, disable it entirely. Apply any available Microsoft patches for Windows Media Services.
- Consultation2.0 h
- Implementation1.0 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-2000-0211 — 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-2000-0211 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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