dbcve.org
SafariWeb browser · Apple

CVE-2024-23206

MEDIUM · 6.5 CVSS v3.1 Published 2024-01-23
Fix available
A fix is available. Upgrade to 10.3 / 14.3 or later.
See remediation →
72/100
Remediation priority · Elevated
Remotely reachable No privileges

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 · unedited
An access issue was addressed with improved access restrictions. This issue is fixed in Safari 17.3, iOS 16.7.5 and iPadOS 16.7.5, iOS 17.3 and iPadOS 17.3, macOS Sonoma 14.3, tvOS 17.3, watchOS 10.3. A maliciously crafted webpage may be able to fingerprint the user.

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 confidence

A malicious webpage can exploit an access control weakness to fingerprint users by accessing restricted browser APIs or device information that should be blocked. The vulnerability allows collection of identifying information about the user without their consent.

MitigationUpdate affected Apple devices to Safari 17.3, iOS/iPadOS 16.7.5 or 17.3, macOS Sonoma 14.3, tvOS 17.3, or watchOS 10.3 to apply the improved access restrictions.

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
Affected:< 17.3
IpadosOperating system
Affected:> 16.0, < 16.7.5> 17.0, < 17.3
Iphone OsOperating system
Affected:> 16.0, < 16.7.5> 17.0, < 17.3
macOSOperating system
Affected:< 14.3
TvosOperating system
Affected:< 17.3
WatchosOperating system
Affected:< 10.3

CVSS 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
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify Safari browser version on the device
    Open Safari, go to Safari menu > About Safari to view the version number
    Affected if Version is less than 17.3
  2. Check iOS version on iPhone
    Go to Settings > General > About to view iOS version
    Affected if Version is greater than 16.0 and less than 16.7.5, OR greater than 17.0 and less than 17.3
  3. Check iPadOS version on iPad
    Go to Settings > General > About to view iPadOS version
    Affected if Version is greater than 16.0 and less than 16.7.5, OR greater than 17.0 and less than 17.3
  4. Check macOS version on Mac
    Go to Apple menu > About This Mac to view macOS version
    Affected if Version is less than 14.3 (Sonoma)
  5. Check tvOS version on Apple TV
    Go to Settings > General > About to view tvOS version
    Affected if Version is less than 17.3
  6. Check watchOS version on Apple Watch
    On iPhone, open Watch app > General > About to view watchOS version
    Affected if Version is less than 10.3

If the device runs any affected Safari, iOS, iPadOS, macOS, tvOS, or watchOS version below the fixed releases, the access control weakness allowing user fingerprinting is present.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to 10.3 / 14.3 / 16.7.5 or later
Fixed in 10.314.316.7.5
Interim mitigation

Update affected Apple devices to Safari 17.3, iOS/iPadOS 16.7.5 or 17.3, macOS Sonoma 14.3, tvOS 17.3, or watchOS 10.3 to apply the improved access restrictions.

Recommended fix High confidence

Safari 17.3; iOS 16.7.5 / iOS 17.3; iPadOS 16.7.5 / iPadOS 17.3; macOS Sonoma 14.3; tvOS 17.3; watchOS 10.3

  1. Check current Safari version via Safari > About Safari (macOS) or Settings > Safari > About (iOS/iPadOS)
  2. Check current macOS version via Apple menu > About This Mac
  3. Check current iOS/iPadOS version via Settings > General > About
  4. Check current tvOS version via Settings > General > About > Version
  5. Check current watchOS version via Settings > General > About > Version
  6. For macOS: Install macOS Sonoma 14.3 or later via System Settings > General > Software Update
  7. For iOS/iPadOS: Install iOS/iPadOS 17.3 or iOS/iPadOS 16.7.5 via Settings > General > Software Update
  8. For Safari: Update to Safari 17.3 via macOS Software Update
Caveat Apple software updates are generally low-risk; however, some legacy apps or configurations may experience compatibility issues with newer OS versions

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Safari Scoped from the published advisory
  • Consultation1.0 h
  • Testing1.0 h
  • Review / QA1.0 h
3.0 hours of engineering $750
Get the upgrade done

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

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-23206 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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