---
id: CVE-2026-86869
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 26.7 and iPadOS 26.7, macOS Golden Gate 27. Processing a
  maliciously crafted image may lead to unexpected app termination.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-787
vendor: apple
product: ipados
affected:
  - ipados < 26.7
  - iphone_os < 26.7
  - macos < 27.0
patched:
  - ipados 26.7
  - iphone_os 26.7
  - macos 27.0
published: '2026-09-14'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T17:32:29.070'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86869'
references:
  - url: 'https://support.apple.com/en-us/149035'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149041'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00341
epssPercentile: 0.24872
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-17T15:49:25.434722Z'
ingestedAt: '2026-09-14T21:15:17.531Z'
---

## Overview

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, macOS Golden Gate 27. Processing a maliciously crafted image may lead to unexpected app termination.

## Affected

- `ipados < 26.7`
- `iphone_os < 26.7`
- `macos < 27.0`

## Remediation

Upgrade past the affected range:

- `ipados 26.7`
- `iphone_os 26.7`
- `macos 27.0`