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RealplayerApplication · Realnetworks

CVE-2010-4384

HIGH · 9.3 CVSS v2.0 Published 2010-12-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
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
Array index error in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer Enterprise 2.1.2, Mac RealPlayer 11.0 through 11.1, Linux RealPlayer 11.0.2.1744, and possibly HelixPlayer 1.0.6 and other versions, allows remote attackers to execute arbitrary code via a malformed Media Properties Header (aka MDPR) in a RealMedia file.

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 confidence

Array index error in RealNetworks RealPlayer allows remote code execution via malformed Media Properties Header (MDPR) in RealMedia files. The vulnerability stems from insufficient bounds checking when parsing the MDPR field, allowing an attacker to write beyond array boundaries and execute arbitrary code by tricking a user into opening a specially crafted .rm or .rmvb file.

MitigationUpdate RealPlayer to the latest version or apply vendor-supplied patches. As an interim control, block or filter incoming RealMedia file attachments and disable automatic opening of such files in the browser/email client.

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
RealplayerApplication
Affected:= 11.0= 11.0.1= 11.0.2= 11.0.3= 11.0.4= 11.0.5= 11.1= 11.0.2.1744= 2.1.2

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
M
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

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. Confirm RealPlayer installation
    On Windows, check for RealPlayer in Program Files or look for 'RealPlayer' in Add/Remove Programs. On Mac, check /Applications for RealPlayer.app.
    Affected if RealPlayer is installed on the system
  2. Identify installed RealPlayer version
    Open RealPlayer, go to Help > About RealPlayer, or right-click the executable and select Properties > Details to view the version number.
    Affected if The displayed version matches one of these: 11.0, 11.0.1, 11.0.2, 11.0.3, 11.0.4, 11.0.5, 11.1, 11.0.2.1744, or 2.1.2
  3. Verify RealPlayer handles RealMedia files
    Check file association settings for .rm and .rmvb file extensions. In RealPlayer, go to Tools > Options > File Types to see which media types are associated.
    Affected if RealPlayer is set to open or preview .rm or .rmvb files automatically
  4. Inspect browser or email client attachment handling
    Check browser settings for automatic file opening and email client attachment preview settings for RealMedia file types.
    Affected if Browser or email client is configured to automatically open or preview .rm/.rmvb attachments

You are affected if RealPlayer versions 11.0 through 11.1, 11.0.2.1744, or 2.1.2 are installed and configured to handle .rm or .rmvb files, as the vulnerability requires parsing of the MDPR field in these RealMedia file formats.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update RealPlayer to the latest version or apply vendor-supplied patches. As an interim control, block or filter incoming RealMedia file attachments and disable automatic opening of such files in the browser/email client.

Recommended fix Moderate confidence

RealPlayer 11.1 or later (latest available version from RealNetworks)

  1. 1. Check current RealPlayer version by opening RealPlayer and navigating to Help > About RealPlayer
  2. 2. Navigate to the official RealNetworks download page at service.real.com to obtain the latest version
  3. 3. Download and install the most recent RealPlayer version available from the official source
  4. 4. Verify the installation was successful by confirming the version number in Help > About RealPlayer
  5. 5. Apply any additional security updates or patches as provided by RealNetworks
Caveat RealPlayer has been discontinued by RealNetworks; ensure alternative media playback solutions are available if using older platforms

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Realplayer 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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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-2010-4384 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
  • No spam, self-promotion, credentials, or personal data