CVE-2011-2617
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 · uneditedUnspecified vulnerability in Opera before 11.50 allows remote attackers to cause a denial of service (application crash) via vectors related to selecting a text node, and closed pop-up windows, removed pop-up windows, and IFRAME elements.
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 confidenceThis is a denial-of-service vulnerability in Opera browsers prior to version 11.50. The vulnerability can be triggered through specific manipulation of text node selection combined with operations on closed or removed pop-up windows and IFRAME elements, causing the browser to crash.
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<= 11.50= 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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Confirm Opera browser is installedCheck for Opera executable in typical installation locations (e.g., C:\Program Files\Opera\opera.exe on Windows, /Applications/Opera.app on macOS, or via command: which opera on Linux). Also check Add/Remove Programs or system package manager.Affected if Opera browser is present on the system
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Identify installed Opera versionRun Opera and navigate to Menu > Help > About Opera, or check the version via command line: opera --version (Linux) or inspect the executable properties. The version number displays in the format like 11.10, 11.00, etc.Affected if Version cannot be determined or is in the affected list
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Compare version against vulnerable rangeReview the version identified in step 2. The affected versions are: 5.0, 5.02, 5.10, 5.11, 5.12, 6.0, 6.1, 6.01, 6.02, 6.03, 6.04, and any version <= 11.50 (prior to 11.50)Affected if Installed version is 11.50 or lower, or matches any of the specific versions 5.0 through 6.04 listed
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Verify JavaScript execution environmentThe vulnerability requires JavaScript to be enabled in Opera (Tools > Preferences > Advanced > Content in older versions, or Settings > Privacy > JavaScript in newer versions). Confirm whether JavaScript handling is active.Affected if JavaScript is enabled and the browser is used to navigate to untrusted web content
A user is affected if Opera browser is installed with any version <= 11.50, and JavaScript execution is enabled while browsing web content that could trigger the text node selection and pop-up window manipulation sequence.
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 11.50 or later. If immediate upgrading is not feasible, consider using an alternative browser as a temporary workaround.
- Consultation1.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2011-2617 — 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-2011-2617 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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- 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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