---
id: CVE-2026-86919
title: A stack overflow was addressed with improved input validation
summary: >-
  A stack overflow was addressed with improved input validation. This issue is
  fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27,
  macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An attacker with a paired
  Blue…
severity: none
vendor: Apple
product: iOS and iPadOS
affected:
  - ios_and_ipados < 26.7
  - ios_and_ipados < 27
  - macOS < 15.8
  - macOS < 26.7
  - macOS < 27
  - visionOS < 27
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T00:50:51.749Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-86919'
references:
  - url: 'https://support.apple.com/en-us/149034'
  - url: 'https://support.apple.com/en-us/149035'
  - url: 'https://support.apple.com/en-us/149038'
  - url: 'https://support.apple.com/en-us/149041'
  - url: 'https://support.apple.com/en-us/149042'
  - url: 'https://support.apple.com/en-us/149043'
tags:
  - cve.org
ingestedAt: '2026-10-20T01:49:42.592Z'
---

## Overview

A stack overflow was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An attacker with a paired Bluetooth device may be able to execute arbitrary code.

## Affected

- `ios_and_ipados < 26.7`
- `ios_and_ipados < 27`
- `macOS < 15.8`
- `macOS < 26.7`
- `macOS < 27`
- `visionOS < 27`

## Remediation

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