CVE-2020-9934 Apple iOS, iPadOS, and macOS Input Validation
A local user can view sensitive user information due to improper handling of environment variables in Apple operating systems.
- Exploited in the wild
- Since 8 Sep 2022
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-9934?
CVE-2020-9934 is a medium-severity vulnerability in Apple Ipados, published on 16 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6. A local user may be able to view sensitive user information.
Which versions are affected by CVE-2020-9934?
It affects 3 products.
Products include Apple Ipados, Apple Iphone Os, Apple Mac Os X.
How do I fix CVE-2020-9934?
No fix has been published for CVE-2020-9934 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 29 Sep 2022.
Is CVE-2020-9934 being exploited?
Yes. Attackers have exploited CVE-2020-9934 in the wild since at least 8 Sep 2022.
Public exploit code: 1 Metasploit module and 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-x5m3-93g8-f3rh.