CVE-2008-3439
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 · uneditedSpeedBit Video Acceleration before 2.2.1.8 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.
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 confidenceSpeedBit Video Acceleration before version 2.2.1.8 lacks proper authentication verification for software updates, allowing man-in-the-middle attackers to inject malicious code via Trojan horse updates. This is a classic code signing/SSL verification bypass vulnerability in the update mechanism.
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<= 2.2.0.7CVSS 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
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/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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Check if Speedbit Video Accelerator is installedLook for the application in the program files directory (typically C:\Program Files\SpeedBit Video Accelerator or C:\Program Files (x86)\SpeedBit Video Accelerator) or check Add/Remove Programs for SpeedBit Video AcceleratorAffected if The application is found on the system
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Identify the installed versionRight-click the SpeedBit Video Accelerator executable (speedbit video accelerator.exe or similar), select Properties, and view the version number on the Details tab. Alternatively, open the program and check Help > About for the version numberAffected if The displayed version is 2.2.0.7 or earlier
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Verify the update mechanism configurationLaunch the application and navigate to Settings or Options. Look for an 'Update' or 'Check for Updates' section and note whether automatic update checking is enabledAffected if Update checking is enabled and the version is 2.2.0.7 or earlier
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Confirm update server communication during operationUse network monitoring tools (such as netstat or Wireshark) to observe if the application attempts to connect to update servers when checking for or applying updatesAffected if The application communicates with update servers while running version 2.2.0.7 or earlier
A user is affected if Speedbit Video Accelerator version 2.2.0.7 or earlier is installed with the update feature enabled and the system performs update checks over a network.
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 dataUpdate to version 2.2.1.8 or later which implements proper update authenticity verification. Until updated, avoid performing updates over untrusted networks.
- Consultation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2008-3439 — 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-2008-3439 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
- No spam, self-promotion, credentials, or personal data