---
id: CVE-2026-86942
title: An out-of-bounds read was addressed with improved bounds checking
summary: >-
  An out-of-bounds read was addressed with improved bounds checking. This issue
  is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27 and iPadOS 27, macOS Golden
  Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27. An app may be
  able…
severity: none
vendor: Apple
product: iOS and iPadOS
affected:
  - ios_and_ipados < 26.7.2
  - ios_and_ipados < 27
  - macOS < 15.8.2
  - macOS < 26.7.2
  - macOS < 27
  - visionOS < 27
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T20:41:12.360Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-86942'
references:
  - url: 'https://support.apple.com/en-us/149034'
  - url: 'https://support.apple.com/en-us/149035'
  - url: 'https://support.apple.com/en-us/149038'
  - url: 'https://support.apple.com/en-us/149227'
  - url: 'https://support.apple.com/en-us/149522'
  - url: 'https://support.apple.com/en-us/149523'
tags:
  - cve.org
epss: 0.00237
epssPercentile: 0.14679
ingestedAt: '2026-10-27T16:11:59.011Z'
---

## Overview

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27. An app may be able to cause a denial-of-service.

## Affected

- `ios_and_ipados < 26.7.2`
- `ios_and_ipados < 27`
- `macOS < 15.8.2`
- `macOS < 26.7.2`
- `macOS < 27`
- `visionOS < 27`

## Remediation

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