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Mallory
High

Process crash in Apple WebKit web content processing

IdentifiersCVE-2024-54479CWE-20

CVE-2024-54479 is an Apple web-content processing vulnerability affecting multiple Apple platforms, including iPadOS 17.7.3, watchOS 11.2, visionOS 2.2, tvOS 18.2, macOS Sequoia 15.2, Safari 18.2, iOS 18.2, and iPadOS 18.2. Apple states that processing maliciously crafted web content may lead to an unexpected process crash. The issue was addressed with improved checks. The available advisory text does not identify the specific vulnerable function or code path beyond web-content processing.

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For your environment

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can cause an unexpected crash of the targeted process while malicious web content is being handled, resulting in denial of service for the affected application or rendering process. Based on the provided information, there is no specific evidence that this CVE enables code execution or data disclosure; the documented impact is process termination/crash.

Mitigation

If you can’t patch tonight, do this now.

Until patches are applied, reduce exposure to untrusted web content. Practical mitigations include limiting browsing to trusted sites, restricting use of Safari/WebKit-based content handlers where feasible, and using standard enterprise controls that reduce delivery of malicious web pages. No product-specific workaround is provided in the supplied content.

Remediation

Patch, then assume compromise.

Apply the vendor fixes provided by Apple. Apple states the issue is fixed in iPadOS 17.7.3, watchOS 11.2, visionOS 2.2, tvOS 18.2, macOS Sequoia 15.2, Safari 18.2, iOS 18.2, and iPadOS 18.2. Upgrade affected devices and browsers to the patched versions or later.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AppleIpadosoperating_system
AppleIphone Osoperating_system
AppleMacosoperating_system
AppleSafariapplication
AppleTvosoperating_system
AppleVisionosoperating_system
AppleWatchosoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.