CVE-2020-9870 Security feature bypass in iOS
An attacker with memory write capability can bypass pointer authentication codes to execute arbitrary code on Apple devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-9870?
CVE-2020-9870 is a high-severity vulnerability in Apple Ipados, published on 16 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A logic issue was addressed with improved validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8. An attacker with memory write capability may be able to bypass pointer authentication codes and run arbitrary code.
Weakness: CWE-20
Which versions are affected by CVE-2020-9870?
It affects 4 products.
Products include Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Tvos.
How do I fix CVE-2020-9870?
No fix has been published for CVE-2020-9870 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-9870 being exploited?
There is no known exploitation of CVE-2020-9870 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-899c-g9fr-8ccx.