---
id: CVE-2026-28886
title: A null pointer dereference was addressed with improved input validation
summary: >-
  A null pointer dereference was addressed with improved input validation. This
  issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4,
  macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4,
  visionOS 26.4…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: adp
vendor: Apple
product: iOS and iPadOS
affected:
  - ios_and_ipados < 18.7.7
  - ios_and_ipados < 26.4
  - macOS < 14.8.5
  - macOS < 15.7.5
  - macOS < 26.4
  - tvOS < 26.4
  - visionOS < 26.4
  - watchOS < 26.4
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-03-25T16:11:50.674865Z'
published: '2026-03-25'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T20:42:25.166Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-28886'
references:
  - url: 'https://support.apple.com/en-us/126792'
  - url: 'https://support.apple.com/en-us/126793'
  - url: 'https://support.apple.com/en-us/126794'
  - url: 'https://support.apple.com/en-us/126795'
  - url: 'https://support.apple.com/en-us/126796'
  - url: 'https://support.apple.com/en-us/126797'
  - url: 'https://support.apple.com/en-us/126798'
  - url: 'https://support.apple.com/en-us/126799'
tags:
  - cve.org
epss: 0.00665
epssPercentile: 0.51572
ingestedAt: '2026-10-27T16:11:59.047Z'
---

## Overview

A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A user in a privileged network position may be able to cause a denial-of-service.

## Affected

- `ios_and_ipados < 18.7.7`
- `ios_and_ipados < 26.4`
- `macOS < 14.8.5`
- `macOS < 15.7.5`
- `macOS < 26.4`
- `tvOS < 26.4`
- `visionOS < 26.4`
- `watchOS < 26.4`

## Remediation

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