---
id: CVE-2025-43297
title: A type confusion issue was addressed with improved memory handling
summary: >-
  A type confusion issue was addressed with improved memory handling. This issue
  is fixed in macOS Tahoe 26. An app may be able to cause a denial-of-service.
severity: medium
cvss: 6.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-843
vendor: apple
product: macos
affected:
  - macos < 26.0
patched:
  - macos 26.0
published: '2025-09-15'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:10:00.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-43297'
references:
  - url: 'https://support.apple.com/en-us/125110'
    label: product-security@apple.com
  - url: 'http://seclists.org/fulldisclosure/2025/Sep/53'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00367
epssPercentile: 0.28119
ingestedAt: '2026-09-30T23:29:32.385Z'
---

## Overview

A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26. An app may be able to cause a denial-of-service.

## Affected

- `macos < 26.0`

## Remediation

Upgrade past the affected range:

- `macos 26.0`