---
id: CVE-2025-43346
title: An out-of-bounds access issue was addressed with improved bounds checking
summary: >-
  An out-of-bounds access issue was addressed with improved bounds checking.
  This issue is fixed in iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS
  Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing a maliciously crafted
  media fi…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: adp
vendor: Apple
product: iOS and iPadOS
affected:
  - ios_and_ipados < 18.7
  - ios_and_ipados < 26
  - macOS < 26
  - tvOS < 26
  - visionOS < 26
  - watchOS < 26
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2025-09-26T03:55:10.545299Z'
published: '2025-09-15'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T22:03:03.026Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-43346'
references:
  - url: 'https://support.apple.com/en-us/125108'
  - url: 'https://support.apple.com/en-us/125109'
  - url: 'https://support.apple.com/en-us/125110'
  - url: 'https://support.apple.com/en-us/125114'
  - url: 'https://support.apple.com/en-us/125115'
  - url: 'https://support.apple.com/en-us/125116'
tags:
  - cve.org
epss: 0.00238
epssPercentile: 0.15031
ingestedAt: '2026-11-05T20:33:06.560Z'
---

## Overview

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing a maliciously crafted media file may lead to unexpected app termination or corrupt process memory.

## Affected

- `ios_and_ipados < 18.7`
- `ios_and_ipados < 26`
- `macOS < 26`
- `tvOS < 26`
- `visionOS < 26`
- `watchOS < 26`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.