CVE-2023-43000 Apple Multiple products Use-After-Free
Attackers can execute arbitrary code by tricking users into visiting malicious web content in Safari on Apple devices.
- Exploited in the wild
- Since 5 Mar 2026
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-43000?
CVE-2023-43000 is a high-severity use after free vulnerability in Apple Ipados, published on 5 Nov 2025. 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 use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.
Weakness: CWE-416
Which versions are affected by CVE-2023-43000?
It affects 4 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Safari.
How do I fix CVE-2023-43000?
Upgrade to a fixed version. US federal agencies must fix it by 26 Mar 2026.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-43000 being exploited?
Yes. Attackers have exploited CVE-2023-43000 in the wild since at least 5 Mar 2026.
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-2023-43000, GHSA-96ff-3rwm-724g, UBUNTU-CVE-2023-43000.