---
id: CVE-2026-84593
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 27 and iPadOS 27. 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 < 27.0
  - iphone_os < 27.0
patched:
  - ipados 27.0
  - iphone_os 27.0
published: '2026-09-14'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T15:57:27.817'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84593'
references:
  - url: 'https://support.apple.com/en-us/149034'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00153
epssPercentile: 0.03706
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-15T16:58:28.865575Z'
ingestedAt: '2026-09-14T21:15:17.537Z'
---

## Overview

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 27 and iPadOS 27. An app may be able to cause unexpected system termination.

## Affected

- `ipados < 27.0`
- `iphone_os < 27.0`

## Remediation

Upgrade past the affected range:

- `ipados 27.0`
- `iphone_os 27.0`