---
id: "CVE-2014-4404"
kind: "vulnerability"
aliases: ["CVE-2014-4404"]
title: "Apple OS X: Apple OS X Heap-Based Buffer Overflow Vulnerability"
severity: "critical"
cvss: 9.3
epss: 0.48923
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Apple OS X", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["apple-tv", "exploited", "infrastructure", "ios", "macos"]
not_affected_if: ["patched-devices"]
published_at: "2014-09-18T10:55:09+00:00"
first_seen_at: "2026-10-23T19:11:53+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-2014-4404", "first_seen_at": "2026-10-23T19:11:53+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2014-4404", "first_seen_at": "2026-10-23T19:13:44+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-4404", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Apple OS X: Apple OS X Heap-Based Buffer Overflow Vulnerability

A heap-based buffer overflow in Apple's IOHIDFamily driver lets an attacker run arbitrary code in a privileged context on OS X, iOS before 8, and Apple TV before 7. CISA lists it as actively exploited in the wild.

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

## Affected

- vendor:Apple OS X affected ? fixed ?

## Fix

Apply the Apple OS X, iOS and Apple TV updates from the vendor, as CISA instructs; the specific fixed versions are not stated in the sources.

## Timeline

- 2026-10-23T19:11:53+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2014-4404
- 2026-10-23T19:13:44+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2014-4404
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2014-4404

## From the sources

Heap-based buffer overflow in IOHIDFamily in Apple OS X, which affects, iOS before 8 and Apple TV before 7, allows attackers to execute arbitrary code in a privileged context.

CISA required action: Apply updates per vendor instructions.

---

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