CVE-2020-3873 Security feature bypass in iOS
Attackers can bypass privacy settings to view remote content in mail previews, potentially exposing user data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3873?
CVE-2020-3873 is a low-severity vulnerability in Apple Ipados, published on 27 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This issue was addressed with improved setting propagation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1. Turning off "Load remote content in messages” may not apply to all mail previews.
Which versions are affected by CVE-2020-3873?
It affects 2 products.
Products include Apple Ipados, Apple Iphone Os.
How do I fix CVE-2020-3873?
No fix has been published for CVE-2020-3873 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-3873 being exploited?
There is no known exploitation of CVE-2020-3873 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-gm62-vfww-h3xp.