---
id: "CVE-2022-42827"
kind: "vulnerability"
aliases: ["CVE-2022-42827"]
title: "An out-of-bounds write issue was addressed with improved bounds checking"
severity: "high"
cvss: 7.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Apple iOS and iPadOS", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "apple ipados", "fixed": ["15.7.1"], "affected": "< 15.7.1", "ecosystem": "vendor"}, {"name": "apple iphone os", "fixed": ["15.7.1"], "affected": "< 15.7.1", "ecosystem": "vendor"}, {"name": "apple iphone os", "fixed": ["16.1"], "affected": ">= 16.0, < 16.1", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["apple-devices", "exploited", "infrastructure", "ios", "ipados"]
not_affected_if: ["fully-patched-devices"]
published_at: "2022-10-25T00:00:00+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T22:29:04+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-42827", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42827", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# An out-of-bounds write issue was addressed with improved bounds checking

An out-of-bounds write in the Apple iOS and iPadOS kernel lets an app running on the device execute code with kernel privileges. Attackers have exploited it in the wild.

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

## Affected

- vendor:Apple iOS and iPadOS affected ? fixed ?
- vendor:apple ipados affected < 15.7.1 fixed 15.7.1
- vendor:apple iphone os affected < 15.7.1 fixed 15.7.1
- vendor:apple iphone os affected >= 16.0, < 16.1 fixed 16.1

## How to check

Settings > General > About shows the iOS or iPadOS version; compare it to the fixed release in Apple's advisory.

## Fix

Update iOS or iPadOS to a release that includes Apple's fix for CVE-2022-42827, as CISA requires per vendor instructions.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-42827
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2022-42827

## From the sources

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.7.1 and iPadOS 15.7.1, iOS 16.1 and iPadOS 16. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..

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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_