---
id: CVE-2026-43661
title: A buffer overflow issue was addressed with improved memory handling
summary: >-
  A buffer overflow issue was addressed with improved memory handling. This
  issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5,
  iOS 26.7 and iPadOS 26.7, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS
  Tahoe 26.5, …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-121
vendor: apple
product: ipados
affected:
  - ipados < 26.5
  - iphone_os < 26.5
  - 'macos >= 26.0, < 26.5'
  - tvos < 26.5
  - watchos < 26.5
patched:
  - ipados 26.5
  - iphone_os 26.5
  - macos 26.5
  - tvos 26.5
  - watchos 26.5
published: '2026-05-11'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T21:17:06.590'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-43661'
references:
  - url: 'https://support.apple.com/en-us/127110'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/127115'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/127118'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/127119'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/128071'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/128072'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/148287'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149041'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00721
epssPercentile: 0.51955
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-05-12T13:52:17.131899Z'
ingestedAt: '2026-07-27T21:24:36.897Z'
---

## Overview

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, iOS 26.7 and iPadOS 26.7, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. Processing a maliciously crafted image may corrupt process memory.

## Affected

- `ipados < 26.5`
- `iphone_os < 26.5`
- `macos >= 26.0, < 26.5`
- `tvos < 26.5`
- `watchos < 26.5`

## Remediation

Upgrade past the affected range:

- `ipados 26.5`
- `iphone_os 26.5`
- `macos 26.5`
- `tvos 26.5`
- `watchos 26.5`