CVE-2016-4725
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 · uneditedIOAcceleratorFamily in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (memory corruption) via a crafted web site.
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 confidenceA memory corruption vulnerability in IOAcceleratorFamily (Apple's graphics and I/O acceleration framework) allows remote attackers to exploit insufficient bounds checking via a crafted website. This can lead to either sensitive information disclosure from process memory or denial of service through memory corruption.
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< 10.12.0< 10.0< 3.0CVSS 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
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
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 the Apple operating system productDetermine whether the system is running iOS, macOS, tvOS, or watchOS. On macOS, run 'sw_vers' or check System Preferences. On iOS/tvOS, check Settings > General > About. On watchOS, check the Watch app on a paired iPhone.Affected if The system is any of these Apple OS types but the version cannot be determined or is below the fixed versions.
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Check the installed iOS versionOn the iOS device, go to Settings > General > About > Version, or use Xcode or a mobile device management tool to query the OS version programmatically.Affected if The iOS version is less than 10.0 (for example, 9.x).
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Check the installed macOS versionRun 'sw_vers -productVersion' in Terminal, or click the Apple menu > About This Mac.Affected if The macOS version is less than 10.12.0 (for example, 10.11.x or earlier).
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Check the installed tvOS versionOn Apple TV, go to Settings > General > About > Version, or use Xcode or a management tool to query the OS version.Affected if The tvOS version is less than 10.0 (for example, 9.x).
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Check the installed watchOS versionOpen the Watch app on a paired iPhone, select the watch, and check the watchOS version under General > About, or use Xcode to query.Affected if The watchOS version is less than 3.0 (for example, 2.x).
The environment is affected if any Apple device is running iOS, macOS, tvOS, or watchOS versions below 10.0, 10.12.0, 10.0, or 3.0 respectively, and uses IOAcceleratorFamily through web browsing or graphics-intensive applications.
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 data3.010.010.12.0
Apply vendor-supplied updates: iOS 10 or later, macOS 10.12 (Sierra) or later, tvOS 10 or later, or watchOS 3 or later.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-4725 — 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-2016-4725 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