---
id: CVE-2026-86924
title: A memory corruption issue was addressed with improved input validation
summary: >-
  A memory corruption issue was addressed with improved input validation. This
  issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden
  Gate 27, macOS Tahoe 26.7. Connecting a malicious accessory may cause
  unexpected …
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-20
vendor: apple
product: ipados
affected:
  - ipados < 26.7
  - iphone_os < 26.7
  - 'macos >= 26.0, < 26.7'
patched:
  - ipados 26.7
  - iphone_os 26.7
  - macos 26.7
published: '2026-09-14'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T13:04:43.600'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86924'
references:
  - url: 'https://support.apple.com/en-us/149034'
    label: product-security@apple.com
  - 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
  - url: 'https://support.apple.com/en-us/149042'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.0016
epssPercentile: 0.04478
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-16T17:33:06.194482Z'
ingestedAt: '2026-09-14T21:15:17.488Z'
---

## Overview

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.7. Connecting a malicious accessory may cause unexpected system termination.

## Affected

- `ipados < 26.7`
- `iphone_os < 26.7`
- `macos >= 26.0, < 26.7`

## Remediation

Upgrade past the affected range:

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