RealserverApplication · Realnetworks

CVE-2000-0001

MEDIUM · 5.0 CVSS v2.0 Published 1999-12-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
59/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

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 · unedited
RealMedia server allows remote attackers to cause a denial of service via a long ramgen request.

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 · moderate confidence

RealMedia server contains a denial of service vulnerability in its ramgen request handler. Remote attackers can trigger the issue by sending an excessively long ramgen request, likely causing the server to crash or become unresponsive due to improper input handling or resource exhaustion.

MitigationGiven this is a legacy vulnerability from 2000, primary options include upgrading to a supported media server solution, applying vendor patches if available, or implementing network-level filtering to block malformed ramgen requests.

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
RealserverApplication
Affected:= 5.0

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify if RealServer is installed
    Check for RealServer or RealMedia server processes running on the system, or look for installation directories related to RealNetworks server software
    Affected if RealServer or RealMedia server software is running on the system
  2. Determine the installed RealServer version
    Check the version of the installed RealServer using server banners, configuration files, or system commands that display software version information
    Affected if The installed version is confirmed to be exactly 5.0
  3. Verify if the ramgen handler is accessible
    Check server configuration files or attempt to access the ramgen endpoint (such as /ramgen or similar request path) to determine if this handler is enabled
    Affected if The ramgen request handler is enabled and accessible on the server
  4. Check network exposure of the RealServer
    Determine if the RealServer is bound to network interfaces accessible from untrusted networks or directly exposed to the internet
    Affected if The server is accessible from external/untrusted network paths

A system is affected if it is running RealServer version 5.0 with the ramgen handler enabled and exposed to network access, allowing remote attackers to send specially crafted requests.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Given this is a legacy vulnerability from 2000, primary options include upgrading to a supported media server solution, applying vendor patches if available, or implementing network-level filtering to block malformed ramgen requests.

Fix this in Realserver Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2000-0001 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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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