CVE-2023-42833 Code injection in Safari
Attackers can execute arbitrary code by tricking users into processing malicious web content in Safari or WebKit-based apps.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-42833?
CVE-2023-42833 is a high-severity code injection vulnerability in Apple Ipados, published on 10 Jan 2024. 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 correctness issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14, Safari 17, iOS 17 and iPadOS 17. Processing web content may lead to arbitrary code execution.
Weakness: CWE-94
Which versions are affected by CVE-2023-42833?
It affects 4 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Safari.
How do I fix CVE-2023-42833?
Upgrade to a fixed version.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2023-42833 being exploited?
There is no known exploitation of CVE-2023-42833 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 DEBIAN-CVE-2023-42833, GHSA-q6j4-xjv3-96rj, UBUNTU-CVE-2023-42833.