CVE-2026-28858 Memory corruption in iOS and iPadOS
A remote attacker can cause system termination or corrupt kernel memory via a buffer overflow in iOS and iPadOS.
- 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-2026-28858?
CVE-2026-28858 is a critical memory corruption vulnerability in Apple Ipados, published on 25 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A remote user may be able to cause unexpected system termination or corrupt kernel memory.
Weakness: CWE-120
Which versions are affected by CVE-2026-28858?
It affects 2 products.
Products include Apple Ipados, Apple Iphone Os.
How do I fix CVE-2026-28858?
No fix has been published for CVE-2026-28858 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-2026-28858 being exploited?
There is no known exploitation of CVE-2026-28858 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
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-g835-6c4r-v6rm.