---
id: "CVE-2022-22674"
kind: "vulnerability"
aliases: ["CVE-2022-22674"]
title: "Apple macOS: Apple macOS Out-of-Bounds Read Vulnerability"
severity: "high"
cvss: 5.5
epss: 0.01086
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Apple macOS", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "infrastructure", "macos", "monterey"]
not_affected_if: ["not-monterey", "patched-macos"]
published_at: "2022-04-04T00:00:00+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T21:57:35+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-22674", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-22674", "first_seen_at": "2026-10-23T19:13:44+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22674", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Apple macOS: Apple macOS Out-of-Bounds Read Vulnerability

An out-of-bounds read in macOS Monterey lets an application read kernel memory. It is listed in CISA's known-exploited catalog, so attacks have been seen in the wild.

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

## Affected

- vendor:Apple macOS affected ? fixed ?

## Fix

Apply the Apple macOS update per vendor instructions (CISA required action); the specific fixed macOS version is unknown from the sources.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-22674
- 2026-10-23T19:13:44+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2022-22674
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2022-22674

## From the sources

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Monterey 12.3.1, Security Update 2022-004 Catalina, macOS Big Sur 11.6.6. A local user may be able to read 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_