CVE-2021-30698 Null dereference in iOS and iPadOS
A remote attacker can cause a denial of service via a null pointer dereference 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-2021-30698?
CVE-2021-30698 is a high-severity vulnerability in Apple Ipados, published on 8 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A null pointer dereference was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, Safari 14.1.1, iOS 14.6 and iPadOS 14.6. A remote attacker may be able to cause a denial of service.
Weakness: CWE-476
Which versions are affected by CVE-2021-30698?
It affects 4 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Safari.
How do I fix CVE-2021-30698?
No fix has been published for CVE-2021-30698 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-30698 being exploited?
There is no known exploitation of CVE-2021-30698 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-mcw3-qqp9-m3r9.