CVE-2016-3392
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 · uneditedThe Edge Content Security Policy feature in Microsoft Edge does not properly validate documents, which allows remote attackers to bypass intended access restrictions via a crafted web site, aka "Microsoft Browser Security Feature Bypass Vulnerability."
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 confidenceMicrosoft Edge contains a security feature bypass vulnerability in its Content Security Policy (CSP) implementation. The CSP feature does not properly validate documents, allowing remote attackers to bypass intended access restrictions by using a specially crafted website. This could enable attacks such as XSS or data injection that CSP is designed to prevent.
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 dataall versionsCVSS 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
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
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 Microsoft Edge is installedSearch for edge.exe in common installation paths: %ProgramFiles(x86)%\Microsoft\Edge\Application\ or %LocalAppData%\Microsoft\Edge\Application\, or run 'Get-ItemProperty -Path "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*" | Where-Object {$_.DisplayName -like "*Edge*"}'Affected if Microsoft Edge browser is found on the system
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Identify Edge versionRun 'edge.exe --version' from command line, or right-click edge.exe > Properties > Details > File VersionAffected if Any version number is returned (the CVE states all versions are affected)
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Check if Edge is the default or commonly used browserReview browser usage in the organization via enterprise management tools (e.g., Microsoft Intune, Group Policy results), or check default browser settings on endpointsAffected if Microsoft Edge is set as default or actively used by end users
If Microsoft Edge is installed and used, the environment is affected because the CVE explicitly states all versions of Microsoft Edge contain the CSP validation bypass vulnerability.
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 dataApply the Microsoft security update for CVE-2016-3392. Until the patch is deployed, users should avoid untrusted websites and organizations should implement additional security controls such as network-level filtering and browser hardening.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-3392 — 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-2016-3392 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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