CVE-2023-38603 Denial of service in iOS and iPadOS
A remote user can cause a denial-of-service condition in Apple iOS, iPadOS, and macOS, requiring an OS upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-38603?
CVE-2023-38603 is a high-severity denial of service vulnerability in Apple Ipados, published on 27 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The issue was addressed with improved checks. This issue is fixed in iOS 16.6 and iPadOS 16.6, macOS Ventura 13.5. A remote user may be able to cause a denial-of-service.
Which versions are affected by CVE-2023-38603?
It affects 3 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos.
How do I fix CVE-2023-38603?
No fix has been published for CVE-2023-38603 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-38603 being exploited?
There is no known exploitation of CVE-2023-38603 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-cvvm-pvjp-7hfp.