CVE-2026-20650 Denial of service in iOS and iPadOS
An attacker in a privileged network position can cause a denial of service on Apple devices via crafted Bluetooth packets.
- 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-2026-20650?
CVE-2026-20650 is a high-severity denial of service vulnerability in Apple Ipados, published on 11 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial-of-service issue was addressed with improved validation. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker in a privileged network position may be able to perform denial-of-service attack using crafted Bluetooth packets.
Weakness: CWE-400
Which versions are affected by CVE-2026-20650?
It affects 6 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos, Apple Visionos, Apple Watchos.
How do I fix CVE-2026-20650?
No fix has been published for CVE-2026-20650 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-20650 being exploited?
There is no known exploitation of CVE-2026-20650 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-5fwp-233p-3m7m.