CVE-2005-0755
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 · uneditedHeap-based buffer overflow in RealPlayer 10 and earlier, Helix Player before 10.0.4, and RealOne Player v1 and v2 allows remote attackers to execute arbitrary code via a long hostname in a RAM 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 confidenceHeap-based buffer overflow in RealPlayer 10 and earlier, Helix Player before 10.0.4, and RealOne Player v1/v2 allows remote code execution via a specially crafted RAM file containing an overly long hostname that overflows a heap buffer during parsing.
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<= 10.0.3= 1.0= 2.0= 8.0= 10.0= 10.0_6.0.12.690CVSS 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
- High
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:H/Au:N/C:P/I:P/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 installed Real productCheck for RealPlayer, RealOne Player, or Helix Player installation by looking in Program Files for Real folders, checking Start Menu shortcuts, or using 'Add or Remove Programs' (Windows) or installed applications list (Mac/Linux)Affected if Any Realnetworks media player is installed
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Determine installed version numberLaunch the player, go to Help > About or right-click the executable and select Properties > Details to view the version. On Windows, also check the file version property of the main executable (e.g., realplay.exe, realone.exe, helixplayer.exe)Affected if Version matches 8.0, 10.0, 10.0_6.0.12.690 for RealPlayer; 1.0 or 2.0 for RealOne Player; or 10.0.3 or lower for Helix Player
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Verify RAM file handling capabilityCheck if the player has RAM file association enabled by looking at File > Open or File > Open URL functionality, or check system file associations for .ram files. The vulnerability triggers when the player parses a RAM file containing an RTSP URL with an overly long hostname.Affected if RAM file parsing is available and the player can open .ram or similar playlist files
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Confirm affected conditionCompare your exact installed version against the affected ranges: RealPlayer 8.0, 10.0, or 10.0_6.0.12.690; RealOne Player 1.0 or 2.0; Helix Player 10.0.3 or earlierAffected if Installed version falls within any of the affected version ranges listed
You are affected if a vulnerable version of RealPlayer, RealOne Player, or Helix Player is installed and the application can process RAM files.
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 dataUpgrade affected RealPlayer, Helix Player, or RealOne Player installations to patched versions. Avoid opening RAM files from untrusted sources until updates are applied.
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,744.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2005-0755 — 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-2005-0755 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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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.
- 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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