CVE-2021-30826 Security feature bypass in iOS and iPadOS
A logic flaw in iOS and iPadOS allowed the baseband to fail enabling integrity and ciphering protection, bypassing security features.
- 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-2021-30826?
CVE-2021-30826 is a high-severity vulnerability in Apple Ipados, published on 19 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A logic issue was addressed with improved state management. This issue is fixed in iOS 15 and iPadOS 15. In certain situations, the baseband would fail to enable integrity and ciphering protection.
Which versions are affected by CVE-2021-30826?
It affects 2 products.
Products include Apple Ipados, Apple Iphone Os.
How do I fix CVE-2021-30826?
No fix has been published for CVE-2021-30826 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-30826 being exploited?
There is no known exploitation of CVE-2021-30826 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-33hx-6698-q89r.