---
id: CVE-2025-43532
title: A memory corruption issue was addressed with improved bounds checking
summary: >-
  A memory corruption issue was addressed with improved bounds checking. This
  issue is fixed in iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2,
  macOS Sequoia 15.7.3, macOS Sonoma 14.8.3, macOS Tahoe 26.2, tvOS 26.2,
  visionOS 26.2, …
severity: low
cvss: 2.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L'
cwe:
  - CWE-120
vendor: apple
product: macos
affected:
  - macos < 14.8.3
  - 'macos >= 15.0, < 15.7.3'
patched:
  - macos 15.7.3
published: '2025-12-12'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T20:10:00.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-43532'
references:
  - url: 'https://support.apple.com/en-us/125884'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125885'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125886'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125887'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125888'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125889'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125890'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125891'
    label: product-security@apple.com
tags:
  - nvd
epss: 0.00274
epssPercentile: 0.17908
ingestedAt: '2026-09-30T20:23:19.452Z'
---

## Overview

A memory corruption issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Sequoia 15.7.3, macOS Sonoma 14.8.3, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing malicious data may lead to unexpected app termination.

## Affected

- `macos < 14.8.3`
- `macos >= 15.0, < 15.7.3`

## Remediation

Upgrade past the affected range:

- `macos 15.7.3`