CVE-2012-3568
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 · uneditedOpera before 12.00 Beta allows remote attackers to cause a denial of service (application crash) via crafted WebGL content, as demonstrated by a codeflow.org WebGL demo.
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 confidenceOpera before 12.00 Beta contains a vulnerability in its WebGL implementation that allows remote attackers to trigger a denial of service via specially crafted WebGL content. The malformed WebGL data causes the browser to crash when rendered.
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<= 11.65= 5.0= 5.02= 5.10= 5.11= 5.12= 6.0= 6.1= 6.01= 6.02= 6.03= 6.04CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify if Opera browser is installedCheck for Opera executable or check version via command line (opera --version or locate opera executable in common paths like /usr/bin/opera, C:\Program Files\Opera\opera.exe, or ~/.local/bin/opera)Affected if Opera is not found on the system (not affected)
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Determine installed Opera versionRun 'opera --version' from command line, or open Opera, go to Menu > Help > About Opera to view the exact version numberAffected if Version cannot be determined or is not visible (cannot assess)
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Compare version against affected rangesCompare the installed version to: 1) versions 5.0 through 6.04, and 2) any version <= 11.65. Versions 12.00 Beta and later are not affectedAffected if Installed version is 5.0-6.04 inclusive OR version is 11.65 or lower (including 11.x series below 12.00 Beta)
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Verify if WebGL is accessible or enabledIn Opera, check if WebGL is functional by visiting a WebGL test site (such as webglreport.com) or inspect if WebGL is available in opera:webgl (note: older Opera versions had WebGL support in specific builds). Also check if the user has ever used WebGL-enabled contentAffected if WebGL is available and has been used, but only relevant if version check above shows affected version
A user is affected if they have Opera browser installed with version 5.0-6.04 or any version <= 11.65, and WebGL content can be rendered in that browser.
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 Opera to version 12.00 Beta or later to resolve the WebGL rendering vulnerability.
- Consultation1.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA0.5 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,200.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-3568 — 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-2012-3568 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