---
id: CVE-2025-43377
title: An out-of-bounds read was addressed with improved bounds checking
summary: >-
  An out-of-bounds read was addressed with improved bounds checking. This issue
  is fixed in iOS 18.7.2 and iPadOS 18.7.2, macOS Sequoia 15.7.2, macOS Tahoe
  26.1. An app may be able to cause a denial-of-service.
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-125
vendor: apple
product: macos
affected:
  - macos < 15.7.2
patched:
  - macos 15.7.2
published: '2025-11-04'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T00:10:00.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-43377'
references:
  - url: 'https://support.apple.com/en-us/125633'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125634'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125635'
    label: product-security@apple.com
tags:
  - nvd
epss: 0.00176
epssPercentile: 0.06381
ingestedAt: '2026-09-26T00:22:39.967Z'
---

## Overview

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, macOS Sequoia 15.7.2, macOS Tahoe 26.1. An app may be able to cause a denial-of-service.

## Affected

- `macos < 15.7.2`

## Remediation

Upgrade past the affected range:

- `macos 15.7.2`