CVE-2026-20616 Memory corruption in iOS and iPadOS

High 8.8 Published Updated

An out-of-bounds write in Apple operating systems allows attackers to cause unexpected app termination via maliciously crafted USD files.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-20616?

CVE-2026-20616 is a high-severity memory corruption vulnerability in Apple Ipados, published on 11 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. Processing a maliciously crafted USD file may lead to unexpected app termination.

Weakness: CWE-787

Which versions are affected by CVE-2026-20616?

It affects 4 products.

Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Visionos.

How do I fix CVE-2026-20616?

No fix has been published for CVE-2026-20616 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-20616 being exploited?

There is no known exploitation of CVE-2026-20616 in the wild and no public exploit code.

All Apple Ipados vulnerabilities

Sources

Also known as GHSA-6xrf-46c8-4wmj.

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