---
id: CVE-2026-84494
title: An out-of-bounds write issue was addressed with improved bounds checking
summary: >-
  An out-of-bounds write issue was addressed with improved bounds checking. This
  issue is fixed in iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS
  27.2. An app may be able to cause unexpected system termination or write
  kernel m…
severity: none
vendor: Apple
product: iOS and iPadOS
affected:
  - ios_and_ipados < 27.2
  - macOS < 27.2
  - visionOS < 27.2
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T20:41:06.935Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-84494'
references:
  - url: 'https://support.apple.com/en-us/149230'
  - url: 'https://support.apple.com/en-us/149521'
  - url: 'https://support.apple.com/en-us/149526'
tags:
  - cve.org
epss: 0.00228
epssPercentile: 0.13506
ingestedAt: '2026-10-27T16:11:59.006Z'
---

## Overview

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS 27.2. An app may be able to cause unexpected system termination or write kernel memory.

## Affected

- `ios_and_ipados < 27.2`
- `macOS < 27.2`
- `visionOS < 27.2`

## Remediation

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