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Helix PlayerApplication · Realnetworks

CVE-2007-3410

HIGH · 9.3 CVSS v2.0 Published 2007-06-26
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
Stack-based buffer overflow in the SmilTimeValue::parseWallClockValue function in smlprstime.cpp in RealNetworks RealPlayer 10, 10.1, and possibly 10.5, RealOne Player, RealPlayer Enterprise, and Helix Player 10.5-GOLD and 10.0.5 through 10.0.8, allows remote attackers to execute arbitrary code via an SMIL (SMIL2) file with a long wallclock value.

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

Stack-based buffer overflow in the SmilTimeValue::parseWallClockValue function in smlprstime.cpp allows remote code execution via SMIL (SMIL2) files containing an excessively long wallclock value, enabling attackers to inject and execute arbitrary code through the malformed media file.

MitigationRestrict handling of untrusted SMIL files; upgrade to a patched RealPlayer/Helix Player version if available, or migrate to a supported media player alternative.

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
Helix PlayerApplication
Affected:= 10.0.5= 10.0.6= 10.0.7= 10.0.8= 10.5-gold
Realone PlayerApplication
Affected:all versions
RealplayerApplication
Affected:= 10.0= 10.1= 10.5
Realplayer EnterpriseApplication
Affected:all versions

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. Identify installed RealPlayer or Helix Player product
    Check the installed programs list or examine the executable properties of the media player (typically in Program Files/Real or similar location). Look for executable names like realplay.exe, realplayer.exe, or helixplayer.exe.
    Affected if Any RealPlayer, RealOne Player, Helix Player, or RealPlayer Enterprise executable is found on the system.
  2. Verify the exact installed version
    Right-click the player executable, select Properties, and check the Version tab. Alternatively, run 'realplay.exe -version' or 'helixplayer -version' from the command line if supported.
    Affected if The installed version matches: Helix Player 10.0.5, 10.0.6, 10.0.7, 10.0.8, or 10.5-gold; RealPlayer 10.0, 10.1, or 10.5; any RealOne Player version; any RealPlayer Enterprise version.
  3. Confirm SMIL file handling is enabled
    Check the player configuration or registry for SMIL (.smil, .smi) file type associations. Look for entries linking SMIL file extensions to the player executable.
    Affected if SMIL file types are associated with or handled by the installed RealPlayer or Helix Player.
  4. Locate the vulnerable smlprstime component
    Search for the file smlprstime.cpp or the compiled library containing the SmilTimeValue::parseWallClockValue function within the player installation directory.
    Affected if The smlprstime component exists in the player installation, indicating the vulnerable SMIL parsing code is present.

The system is affected if a vulnerable version of RealPlayer, RealOne Player, Helix Player, or RealPlayer Enterprise is installed AND SMIL file handling is enabled, allowing the player to parse SMIL files containing malformed wallclock values.

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

Restrict handling of untrusted SMIL files; upgrade to a patched RealPlayer/Helix Player version if available, or migrate to a supported media player alternative.

Recommended fix High confidence
  1. 1. Identify systems running any affected RealPlayer, RealOne Player, RealPlayer Enterprise, or Helix Player versions.
  2. 2. Uninstall all affected software - these are legacy/discontinued products with no available patches.
  3. 3. Replace with actively maintained media players (e.g., VLC, MPV, or modern alternatives).
  4. 4. If continued use of these legacy players is business-critical, implement network-level restrictions to block untrusted SMIL content from entering the environment.
Caveat Upgrade not feasible - RealPlayer and Helix Player have been discontinued. RealPlayer was end-of-lifed circa 2013 and no security updates are available.

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

Fix this in Helix Player Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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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-2007-3410 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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