---
id: "CVE-2026-112477"
kind: "vulnerability"
aliases: ["CVE-2026-112477"]
title: "Apple iOS and macOS: race condition lets an app corrupt kernel memory"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["apple-fleet", "infrastructure", "ios", "ipados", "macos", "tvos", "visionos", "watchos"]
not_affected_if: ["already-on-fixed-version"]
published_at: "2026-10-26T21:17:38+00:00"
first_seen_at: "2026-10-26T21:20:26+00:00"
updated_at: "2026-10-26T21:30:06+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112477", "first_seen_at": "2026-10-26T21:20:26+00:00"}]
---

# Apple iOS and macOS: race condition lets an app corrupt kernel memory

A race condition in Apple's operating system software lets a local app crash the system or corrupt kernel memory. Apple fixed it in several iOS, iPadOS, macOS, tvOS, visionOS and watchOS releases.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version under Settings > General > About on iOS, iPadOS, tvOS, visionOS and watchOS, or Apple menu > About This Mac on macOS.
- Compare against the fixed builds: `iOS 26.7.2`, `iPadOS 26.7.2`, `iOS 27.2`, `iPadOS 27.2`, `macOS Sequoia 15.8.2`, `macOS Tahoe 26.7.2`, `macOS Golden Gate 27.2`, `tvOS 27.2`, `visionOS 27.2`, `watchOS 27.2`.

## Fix

- Update iOS and iPadOS to `26.7.2` or `27.2`.
- Update macOS Sequoia to `15.8.2`, macOS Tahoe to `26.7.2`, or macOS Golden Gate to `27.2`.
- Update tvOS, visionOS and watchOS to `27.2`.

## Timeline

- 2026-10-26T21:20:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112477

## From the sources

A race condition was addressed with improved locking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, tvOS 27.2, visionOS 27.2, watchOS 27.2. An app may be able to cause unexpected system termination or corrupt kernel memory.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_