CVE-2023-32366 Memory corruption in iOS and iPadOS
An out-of-bounds write in font processing allows arbitrary code execution on Apple operating systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-32366?
CVE-2023-32366 is a high-severity memory corruption vulnerability in Apple Ipados, published on 10 Jan 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4. Processing a font file may lead to arbitrary code execution.
Weakness: CWE-787
Which versions are affected by CVE-2023-32366?
It affects 3 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos.
How do I fix CVE-2023-32366?
No fix has been published for CVE-2023-32366 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-32366 being exploited?
There is no known exploitation of CVE-2023-32366 in the wild and no public exploit code.
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 GHSA-qv93-gg7x-cv52.