CVE-2023-32439 Apple Multiple Products WebKit Type Confusion
Attackers can execute arbitrary code by tricking users into visiting malicious web content in Safari or WebKit-based apps.
- Exploited in the wild
- Since 23 Jun 2023
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-32439?
CVE-2023-32439 is a high-severity memory corruption vulnerability in Apple Ipados, published on 23 Jun 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Weakness: CWE-843
Which versions are affected by CVE-2023-32439?
It affects 5 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Safari, Webkitgtk Webkitgtk\+.
How do I fix CVE-2023-32439?
Apply the vendor's patch. US federal agencies must fix it by 14 Jul 2023.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-32439 being exploited?
Yes. Attackers have exploited CVE-2023-32439 in the wild since at least 23 Jun 2023.
Other vulnerabilities in Apple Ipados
- CVE-2025-43300 Apple iOS, iPadOS, and macOS Out-of-Bounds Write
- CVE-2025-24201 Apple Multiple Products WebKit Out-of-Bounds Write
- CVE-2025-24085 Apple Multiple Products Use-After-Free
- CVE-2025-31200 Apple Multiple Products Memory Corruption
- CVE-2025-31201 Apple Multiple Products Arbitrary Read and Write
Sources
Also known as DEBIAN-CVE-2023-32439, DSA-5449-1, GHSA-rh53-wvg6-9v8m, UBUNTU-CVE-2023-32439.