---
id: CVE-2026-43808
title: A use-after-free issue was addressed with improved memory management
summary: >-
  A use-after-free issue was addressed with improved memory management. This
  issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6,
  watchOS 26.6. An app may be able to cause unexpected system termination.
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-416
vendor: apple
product: ipados
affected:
  - ipados < 26.6
  - iphone_os < 26.6
  - macos < 26.6
  - tvos < 26.6
  - watchos < 26.6
patched:
  - ipados 26.6
  - iphone_os 26.6
  - macos 26.6
  - tvos 26.6
  - watchos 26.6
published: '2026-09-14'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T16:00:49.470'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-43808'
references:
  - url: 'https://support.apple.com/en-us/128066'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/128067'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/128068'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/128069'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00153
epssPercentile: 0.03731
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-15T18:22:14.315529Z'
ingestedAt: '2026-09-14T21:15:17.477Z'
---

## Overview

A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.

## Affected

- `ipados < 26.6`
- `iphone_os < 26.6`
- `macos < 26.6`
- `tvos < 26.6`
- `watchos < 26.6`

## Remediation

Upgrade past the affected range:

- `ipados 26.6`
- `iphone_os 26.6`
- `macos 26.6`
- `tvos 26.6`
- `watchos 26.6`