CVE-2020-9905 Memory corruption in iOS
A remote attacker can cause a denial of service via a buffer overflow in Apple operating systems.
- 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-2020-9905?
CVE-2020-9905 is a high-severity memory corruption vulnerability in Apple Ipados, published on 22 Oct 2020. 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 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8. A remote attacker may be able to cause a denial of service.
Weakness: CWE-120
Which versions are affected by CVE-2020-9905?
It affects 4 products.
Products include Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Tvos.
How do I fix CVE-2020-9905?
No fix has been published for CVE-2020-9905 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-2020-9905 being exploited?
There is no known exploitation of CVE-2020-9905 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-xqfm-73wx-f547.