---
id: CVE-2024-54505
title: A type confusion issue was addressed with improved memory handling
summary: >-
  A type confusion issue was addressed with improved memory handling. This issue
  is fixed in Safari 18.2, iOS 18.2 and iPadOS 18.2, iPadOS 17.7.3, macOS
  Sequoia 15.2, tvOS 18.2, visionOS 2.2, watchOS 11.2. Processing maliciously
  crafted we…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: adp
vendor: Apple
product: Safari
affected:
  - Safari < 18.2
  - ios_and_ipados < 18.2
  - iPadOS < 17.7.3
  - macOS < 15.2
  - tvOS < 18.2
  - visionOS < 2.2
  - watchOS < 11.2
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2024-12-21T04:56:02.639331Z'
published: '2024-12-11'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T16:50:57.314Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2024-54505'
references:
  - url: 'https://support.apple.com/en-us/121837'
  - url: 'https://support.apple.com/en-us/121838'
  - url: 'https://support.apple.com/en-us/121839'
  - url: 'https://support.apple.com/en-us/121843'
  - url: 'https://support.apple.com/en-us/121844'
  - url: 'https://support.apple.com/en-us/121845'
  - url: 'https://support.apple.com/en-us/121846'
tags:
  - cve.org
epss: 0.0107
epssPercentile: 0.64945
ingestedAt: '2026-11-05T21:36:00.461Z'
---

## Overview

A type confusion issue was addressed with improved memory handling. This issue is fixed in Safari 18.2, iOS 18.2 and iPadOS 18.2, iPadOS 17.7.3, macOS Sequoia 15.2, tvOS 18.2, visionOS 2.2, watchOS 11.2. Processing maliciously crafted web content may lead to memory corruption.

## Affected

- `Safari < 18.2`
- `ios_and_ipados < 18.2`
- `iPadOS < 17.7.3`
- `macOS < 15.2`
- `tvOS < 18.2`
- `visionOS < 2.2`
- `watchOS < 11.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.