---
id: CVE-2026-43794
title: A memory corruption issue was addressed with improved memory handling
summary: >-
  A memory corruption issue was addressed with improved memory handling. This
  issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1
  and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27.
  Processing m…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-119
vendor: apple
product: safari
affected:
  - safari < 26.6.1
  - ipados < 18.7.10
  - 'ipados >= 26.0, < 26.6.1'
  - iphone_os < 18.7.10
  - 'iphone_os >= 26.0, < 26.6.1'
  - 'macos >= 26.0, < 26.6.2'
patched:
  - safari 26.6.1
  - ipados 26.6.1
  - iphone_os 26.6.1
  - macos 26.6.2
published: '2026-08-17'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T21:17:11.910'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-43794'
references:
  - url: 'https://support.apple.com/en-us/148281'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/148282'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/148286'
    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/149036'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149037'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149038'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00422
epssPercentile: 0.33811
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-08-18T00:00:00+00:00'
ingestedAt: '2026-09-14T21:15:17.466Z'
---

## Overview

A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.

## Affected

- `safari < 26.6.1`
- `ipados < 18.7.10`
- `ipados >= 26.0, < 26.6.1`
- `iphone_os < 18.7.10`
- `iphone_os >= 26.0, < 26.6.1`
- `macos >= 26.0, < 26.6.2`

## Remediation

Upgrade past the affected range:

- `safari 26.6.1`
- `ipados 26.6.1`
- `iphone_os 26.6.1`
- `macos 26.6.2`