---
id: CVE-2026-43653
title: The issue was addressed with improved memory handling
summary: >-
  The issue was addressed with improved memory handling. This issue is fixed in
  iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8,
  macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5. An attacker on the local
  networ…
severity: medium
cvss: 6.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-400
vendor: apple
product: ipados
affected:
  - ipados < 18.7.9
  - 'ipados >= 26.0, < 26.5'
  - iphone_os < 18.7.9
  - 'iphone_os >= 26.0, < 26.5'
  - 'macos >= 14.0, < 14.8.7'
  - 'macos >= 26.0, < 26.5'
  - tvos < 26.5
patched:
  - ipados 26.5
  - iphone_os 26.5
  - macos 26.5
  - tvos 26.5
published: '2026-05-11'
updated: '2026-07-27'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-43653'
references:
  - url: 'https://support.apple.com/en-us/127110'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/127111'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/127115'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/127117'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/127118'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/128071'
    label: product-security@apple.com
tags:
  - nvd
epss: 0.00177
epssPercentile: 0.06413
ingestedAt: '2026-07-27T21:24:36.870Z'
---

## Overview

The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5. An attacker on the local network may be able to cause a denial-of-service.

## Affected

- `ipados < 18.7.9`
- `ipados >= 26.0, < 26.5`
- `iphone_os < 18.7.9`
- `iphone_os >= 26.0, < 26.5`
- `macos >= 14.0, < 14.8.7`
- `macos >= 26.0, < 26.5`
- `tvos < 26.5`

## Remediation

Upgrade past the affected range:

- `ipados 26.5`
- `iphone_os 26.5`
- `macos 26.5`
- `tvos 26.5`