---
id: CVE-2025-43402
title: The issue was addressed with improved memory handling
summary: >-
  The issue was addressed with improved memory handling. This issue is fixed in
  macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.1. An app may be
  able to cause unexpected system termination or corrupt process memory.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-787
vendor: apple
product: macos
affected:
  - macos < 26.1
patched:
  - macos 26.1
published: '2025-12-12'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T20:10:01.970'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-43402'
references:
  - url: 'https://support.apple.com/en-us/125634'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/126349'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/126350'
    label: product-security@apple.com
tags:
  - nvd
epss: 0.00217
epssPercentile: 0.11079
ingestedAt: '2026-10-07T20:46:46.912Z'
---

## Overview

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.1. An app may be able to cause unexpected system termination or corrupt process memory.

## Affected

- `macos < 26.1`

## Remediation

Upgrade past the affected range:

- `macos 26.1`