---
id: CVE-2026-64758
title: The issue was addressed with improved bounds checks
summary: >-
  The issue was addressed with improved bounds checks. This issue is fixed in
  iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, macOS Sequoia 15.8, macOS
  Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously
  crafte…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: adp
vendor: Apple
product: iOS and iPadOS
affected:
  - ios_and_ipados < 26.6
  - ios_and_ipados < 26.7
  - macOS < 15.8
  - macOS < 26.6
  - tvOS < 26.6
  - visionOS < 26.6
  - watchOS < 26.6
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-07-28T14:38:30.546343Z'
published: '2026-07-27'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T00:50:11.794Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-64758'
references:
  - url: 'https://support.apple.com/en-us/128066'
  - url: 'https://support.apple.com/en-us/128067'
  - url: 'https://support.apple.com/en-us/128068'
  - url: 'https://support.apple.com/en-us/128069'
  - url: 'https://support.apple.com/en-us/128070'
  - url: 'https://support.apple.com/en-us/149041'
  - url: 'https://support.apple.com/en-us/149043'
tags:
  - cve.org
epss: 0.00173
epssPercentile: 0.06412
ingestedAt: '2026-10-20T01:49:42.615Z'
---

## Overview

The issue was addressed with improved bounds checks. This issue is fixed in iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, macOS Sequoia 15.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously crafted file may lead to unexpected app termination.

## Affected

- `ios_and_ipados < 26.6`
- `ios_and_ipados < 26.7`
- `macOS < 15.8`
- `macOS < 26.6`
- `tvOS < 26.6`
- `visionOS < 26.6`
- `watchOS < 26.6`

## Remediation

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