---
id: "CVE-2016-4655"
kind: "vulnerability"
aliases: ["CVE-2016-4655"]
title: "Apple iOS: Apple iOS Information Disclosure Vulnerability"
severity: "high"
cvss: 7.1
epss: 0.33353
exploited: true
status: "open"
category: "vendor"
products: [{"name": "Apple iOS", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "ios", "ipad", "iphone", "vendor"]
not_affected_if: ["fully-patched-ios"]
published_at: "2016-08-25T21:59:00+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-2016-4655", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2016-4655", "first_seen_at": "2026-10-23T19:13:45+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4655", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Apple iOS: Apple iOS Information Disclosure Vulnerability

Apple iOS kernel leaks sensitive memory contents to a crafted application. An attacker running a malicious app can read kernel memory that should be off limits to it.

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

## Affected

- vendor:Apple iOS affected ? fixed ?

## Fix

Update iOS to a release that includes Apple's fix for CVE-2016-4655; the sources do not name the fixed version.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2016-4655
- 2026-10-23T19:13:45+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2016-4655
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2016-4655

## From the sources

The Apple iOS kernel allows attackers to obtain sensitive information from memory via a crafted application.

CISA required action: Apply updates per vendor instructions.

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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_