SafariWeb browser · Apple
CVE-2015-5814
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 · uneditedWebKit, as used in JavaScriptCore in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2015-09-16-1 and APPLE-SA-2015-09-16-3.
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 confidenceMemory corruption vulnerability in WebKit's JavaScriptCore allowing remote code execution or denial of service via crafted web pages. Exploits occur when users visit malicious websites in Safari or other WebKit-based browsers on vulnerable iOS or iTunes versions.
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
SafariWeb browser
<= 8.0.8<= 8.4.1<= 12.2CVSS 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:M/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 Safari version on macOSOpen Safari, click Safari menu > About Safari. Compare the version number to 8.0.8 (versions 8.0.8 and below are affected).Affected if Safari version is 8.0.8 or lower on macOS
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Check iOS version on iPhone or iPadGo to Settings > General > About on the device. Look for the 'Version' field. Compare to 8.4.1 (versions 8.4.1 and below are affected).Affected if iOS version is 8.4.1 or lower on iPhone or iPad
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Check iTunes version on Windows or macOSOpen iTunes, then go to Help > About iTunes. Compare the version number shown (for Windows, version 12.2 and below; for Mac, the version displayed in the window). Versions 12.2 and below are affected.Affected if iTunes version is 12.2 or lower
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Identify WebKit-based browsers in useCheck installed browsers that use WebKit rendering engine (such as Safari, older Chrome versions, or other WebKit browsers). On the system, look for browser applications that rely on WebKit for webpage rendering.Affected if Any WebKit-based browser version corresponds to affected Safari/iOS/iTunes ranges is in use
If Safari is 8.0.8 or lower, iOS is 8.4.1 or lower, or iTunes is 12.2 or lower, the environment is vulnerable to this WebKit JavaScriptCore memory corruption flaw.
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 affected devices to iOS 9 or later and iTunes 12.3 or later. For unpatchable devices, implement web filtering to block access to untrusted websites and restrict usage of Safari and WebKit-based applications.
Fix this in Safari
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-5814 — 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-2015-5814 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