dbcve.org
SafariWeb browser · Apple

CVE-2024-54551

HIGH · 7.5 CVSS v3.1 Published 2025-03-21
Fix available
A fix is available. Upgrade to 1.3 / 10.6 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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
The issue was addressed with improved memory handling. This issue is fixed in Safari 17.6, iOS 17.6 and iPadOS 17.6, macOS Sonoma 14.6, tvOS 17.6, visionOS 1.3, watchOS 10.6. Processing web content may lead to a denial-of-service.

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 memory handling vulnerability in WebKit allows processing malicious web content to cause a denial-of-service condition. This affects Safari and WebKit-based browsers across multiple Apple platforms including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS.

MitigationUpdate all affected Apple devices to the patched versions: Safari 17.6, iOS/iPadOS 17.6, macOS Sonoma 14.6, tvOS 17.6, visionOS 1.3, or watchOS 10.6 and later.

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:< 17.6
IpadosOperating system
Affected:< 17.6
Iphone OsOperating system
Affected:< 17.6
macOSOperating system
Affected:< 14.6
TvosOperating system
Affected:< 17.6
VisionosOperating system
Affected:< 1.3
WatchosOperating system
Affected:< 10.6

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
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

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

  1. Identify the Safari or WebKit browser version on the device
    On macOS: Open Safari, go to Safari menu > About Safari. On iOS/iPadOS: Go to Settings > Safari > About. On tvOS: Go to Settings > Apps > Safari > About. On visionOS: Go to Settings > Safari > About. On watchOS: Open the Watch app on paired iPhone, go to Safari > About.
    Affected if The displayed version number is lower than 17.6 for Safari, iOS, iPadOS, tvOS; lower than 14.6 for macOS; lower than 1.3 for visionOS; or lower than 10.6 for watchOS.
  2. Confirm the operating system version matches the affected platform
    On macOS: Apple menu > About This Mac. On iOS/iPadOS: Settings > General > About. On tvOS: Settings > General > About. On visionOS: Settings > General > About. On watchOS: Watch app on iPhone > My Watch > About.
    Affected if The OS version is below 17.6 for iOS/iPadOS/tvOS, below 14.6 for macOS Sonoma, below 1.3 for visionOS, or below 10.6 for watchOS, and the browser version is also below the corresponding threshold.
  3. Check if Safari or any WebKit-based browser is actively used
    Review installed browsers on the device. Common WebKit-based browsers include Safari, Chrome (on iOS uses WebKit), Firefox (on iOS uses WebKit), and third-party browsers on iOS that rely on WebKit.
    Affected if Safari or any WebKit-based browser is installed and was used to process untrusted web content.
  4. Verify whether the device received the latest available update
    On iOS/iPadOS: Settings > General > Software Update. On macOS: System Settings > General > Software Update. On tvOS: Settings > General > Software Update. On visionOS: Settings > General > Software Update. On watchOS: On the watch: Settings > General > Software Update, or via Watch app on iPhone.
    Affected if The device shows an available update to a version at or above the fixed releases (iOS/iPadOS 17.6, macOS 14.6, tvOS 17.6, visionOS 1.3, watchOS 10.6).

A user is affected if Safari or a WebKit-based browser is running on an Apple platform with a version lower than the fixed releases (Safari 17.6, iOS/iPadOS 17.6, macOS 14.6, tvOS 17.6, visionOS 1.3, watchOS 10.6) and the browser has been used to access untrusted web content.

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 1.3 / 10.6 / 14.6 or later
Fixed in 1.310.614.6
Interim mitigation

Update all affected Apple devices to the patched versions: Safari 17.6, iOS/iPadOS 17.6, macOS Sonoma 14.6, tvOS 17.6, visionOS 1.3, or watchOS 10.6 and later.

Recommended fix High confidence

iOS 17.6, iPadOS 17.6, macOS Sonoma 14.6, tvOS 17.6, visionOS 1.3, watchOS 10.6, Safari 17.6

  1. For iPhone/iPad: Go to Settings > General > Software Update and install iOS/iPadOS 17.6 or later
  2. For Mac: Open System Settings > General > Software Update and install macOS Sonoma 14.6 or later
  3. For Apple Watch: Open the Watch app on iPhone > General > Software Update and install watchOS 10.6 or later
  4. For Apple TV: Go to Settings > System > Software Updates and install tvOS 17.6 or later
  5. For Vision Pro: Go to Settings > General > Software Update and install visionOS 1.3 or later
  6. For Safari standalone: Update macOS to 14.6 which includes Safari 17.6
Caveat Standard point-release upgrade; ensure backup before updating

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

Fix this in Safari Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,390
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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-2024-54551 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