---
id: "CVE-2023-32435"
kind: "vulnerability"
aliases: ["CVE-2023-32435"]
title: "A memory corruption issue was addressed with improved state management"
severity: "critical"
cvss: 8.8
epss: null
exploited: true
status: "open"
category: "vendor"
products: [{"name": "Apple Multiple Products", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "apple safari", "fixed": ["16.4"], "affected": "< 16.4", "ecosystem": "vendor"}, {"name": "apple ipados", "fixed": ["15.7.7"], "affected": "< 15.7.7", "ecosystem": "vendor"}, {"name": "apple ipados", "fixed": ["16.4"], "affected": ">= 16.0, < 16.4", "ecosystem": "vendor"}, {"name": "apple iphone os", "fixed": ["15.7.7"], "affected": "< 15.7.7", "ecosystem": "vendor"}, {"name": "apple iphone os", "fixed": ["16.4"], "affected": ">= 16.0, < 16.4", "ecosystem": "vendor"}, {"name": "apple macos", "fixed": ["13.3"], "affected": ">= 13.0, < 13.3", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "ios", "ipados", "macos", "safari", "vendor", "webkit"]
not_affected_if: ["fully-patched-devices"]
published_at: "2023-06-23T00:00:00+00:00"
first_seen_at: "2026-10-23T19:11:51+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-2023-32435", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32435", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# A memory corruption issue was addressed with improved state management

A memory corruption flaw in Apple's WebKit engine lets a malicious web page run code when it is processed by Safari or any app that uses WebKit to render HTML. 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 Multiple Products affected ? fixed ?
- vendor:apple safari affected < 16.4 fixed 16.4
- vendor:apple ipados affected < 15.7.7 fixed 15.7.7
- vendor:apple ipados affected >= 16.0, < 16.4 fixed 16.4
- vendor:apple iphone os affected < 15.7.7 fixed 15.7.7
- vendor:apple iphone os affected >= 16.0, < 16.4 fixed 16.4
- vendor:apple macos affected >= 13.0, < 13.3 fixed 13.3

## Fix

Update iOS, iPadOS and macOS to a current Apple release that includes the WebKit fix; the sources do not name the fixed build numbers.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-32435
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2023-32435

## From the sources

Apple iOS, iPadOS, macOS, and Safari WebKit contain a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

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_