---
id: CVE-2025-43501
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 Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and
  iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2. Processing maliciously crafted
  web content …
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'
cwe:
  - CWE-787
  - CWE-120
vendor: apple
product: safari
affected:
  - safari < 26.2
  - ipados < 18.7.3
  - 'ipados >= 26.0, < 26.2'
  - iphone_os < 18.7.3
  - 'iphone_os >= 26.0, < 26.2'
  - macos < 26.2
  - visionos < 26.2
patched:
  - safari 26.2
  - ipados 26.2
  - iphone_os 26.2
  - macos 26.2
  - visionos 26.2
published: '2025-12-17'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T20:10:00.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-43501'
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/125891'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/125892'
    label: product-security@apple.com
tags:
  - nvd
epss: 0.00773
epssPercentile: 0.54007
ingestedAt: '2026-09-30T20:23:19.456Z'
---

## Overview

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.

## Affected

- `safari < 26.2`
- `ipados < 18.7.3`
- `ipados >= 26.0, < 26.2`
- `iphone_os < 18.7.3`
- `iphone_os >= 26.0, < 26.2`
- `macos < 26.2`
- `visionos < 26.2`

## Remediation

Upgrade past the affected range:

- `safari 26.2`
- `ipados 26.2`
- `iphone_os 26.2`
- `macos 26.2`
- `visionos 26.2`